/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.09.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:52:21,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:52:21,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:52:21,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:52:21,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:52:21,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:52:21,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:52:21,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:52:21,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:52:21,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:52:21,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:52:21,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:52:21,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:52:21,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:52:21,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:52:21,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:52:21,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:52:21,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:52:21,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:52:21,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:52:21,375 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:52:21,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:52:21,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:52:21,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:52:21,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:52:21,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 18:52:21,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 18:52:21,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 18:52:21,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 18:52:21,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 18:52:21,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 18:52:21,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:52:21,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:52:21,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:52:21,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:52:21,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:52:21,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:52:21,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:52:21,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:52:21,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:52:21,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:52:21,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:52:21,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:52:21,410 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:52:21,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:52:21,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:52:21,411 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:52:21,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:52:21,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:52:21,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:52:21,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:52:21,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:52:21,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:52:21,413 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:52:21,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:52:21,413 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:52:21,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:52:21,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:52:21,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:52:21,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:52:21,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:52:21,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:52:21,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:52:21,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:52:21,414 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:52:21,414 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:52:21,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:52:21,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:52:21,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:52:21,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:52:21,611 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:52:21,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.09.i.cil-1.c [2022-03-17 18:52:21,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a904763b2/5278653f79b443ef97f9e7877d475bd1/FLAG42b8787e8 [2022-03-17 18:52:22,198 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:52:22,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.09.i.cil-1.c [2022-03-17 18:52:22,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a904763b2/5278653f79b443ef97f9e7877d475bd1/FLAG42b8787e8 [2022-03-17 18:52:22,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a904763b2/5278653f79b443ef97f9e7877d475bd1 [2022-03-17 18:52:22,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:52:22,638 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:52:22,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:52:22,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:52:22,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:52:22,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:52:22" (1/1) ... [2022-03-17 18:52:22,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3208e0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:22, skipping insertion in model container [2022-03-17 18:52:22,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:52:22" (1/1) ... [2022-03-17 18:52:22,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:52:22,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:52:22,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.09.i.cil-1.c[74369,74382] [2022-03-17 18:52:22,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:52:23,004 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:52:23,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.09.i.cil-1.c[74369,74382] [2022-03-17 18:52:23,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:52:23,103 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:52:23,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:23 WrapperNode [2022-03-17 18:52:23,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:52:23,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:52:23,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:52:23,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:52:23,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:23" (1/1) ... [2022-03-17 18:52:23,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:23" (1/1) ... [2022-03-17 18:52:23,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:23" (1/1) ... [2022-03-17 18:52:23,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:23" (1/1) ... [2022-03-17 18:52:23,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:23" (1/1) ... [2022-03-17 18:52:23,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:23" (1/1) ... [2022-03-17 18:52:23,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:23" (1/1) ... [2022-03-17 18:52:23,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:52:23,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:52:23,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:52:23,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:52:23,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:23" (1/1) ... [2022-03-17 18:52:23,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:52:23,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:52:23,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 18:52:23,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 18:52:23,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:52:23,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:52:23,260 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:52:23,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 18:52:23,261 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 18:52:23,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:52:23,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 18:52:23,261 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 18:52:23,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 18:52:23,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 18:52:23,261 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:52:23,261 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:52:23,262 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:52:23,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:52:23,262 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 18:52:23,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:52:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 18:52:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:52:23,407 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:52:23,408 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:52:24,059 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:52:24,342 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 18:52:24,342 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 18:52:24,350 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:52:24,355 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:52:24,355 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:52:24,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:52:24 BoogieIcfgContainer [2022-03-17 18:52:24,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:52:24,357 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:52:24,357 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:52:24,358 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:52:24,360 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:52:24" (1/1) ... [2022-03-17 18:52:24,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:52:24 BasicIcfg [2022-03-17 18:52:24,404 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:52:24,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:52:24,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:52:24,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:52:24,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:52:22" (1/4) ... [2022-03-17 18:52:24,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546ed422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:52:24, skipping insertion in model container [2022-03-17 18:52:24,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:23" (2/4) ... [2022-03-17 18:52:24,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546ed422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:52:24, skipping insertion in model container [2022-03-17 18:52:24,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:52:24" (3/4) ... [2022-03-17 18:52:24,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546ed422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:52:24, skipping insertion in model container [2022-03-17 18:52:24,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:52:24" (4/4) ... [2022-03-17 18:52:24,409 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.09.i.cil-1.cJordan [2022-03-17 18:52:24,412 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:52:24,413 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:52:24,450 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:52:24,455 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 18:52:24,456 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:52:24,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 18:52:24,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-17 18:52:24,487 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:24,487 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:24,488 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:24,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:24,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1099342272, now seen corresponding path program 1 times [2022-03-17 18:52:24,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:24,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787687284] [2022-03-17 18:52:24,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:24,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:24,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:24,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:52:24,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:24,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787687284] [2022-03-17 18:52:24,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787687284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:24,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:24,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:24,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472847717] [2022-03-17 18:52:24,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:24,961 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:24,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:24,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:24,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:24,989 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:26,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:28,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:30,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:31,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:31,262 INFO L93 Difference]: Finished difference Result 191 states and 312 transitions. [2022-03-17 18:52:31,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:31,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-17 18:52:31,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:31,271 INFO L225 Difference]: With dead ends: 191 [2022-03-17 18:52:31,271 INFO L226 Difference]: Without dead ends: 170 [2022-03-17 18:52:31,272 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:52:31,274 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 34 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:31,278 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 607 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 414 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 18:52:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-03-17 18:52:31,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2022-03-17 18:52:31,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.554054054054054) internal successors, (230), 148 states have internal predecessors, (230), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:31,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 234 transitions. [2022-03-17 18:52:31,309 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 234 transitions. Word has length 42 [2022-03-17 18:52:31,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:31,309 INFO L478 AbstractCegarLoop]: Abstraction has 153 states and 234 transitions. [2022-03-17 18:52:31,310 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:31,310 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 234 transitions. [2022-03-17 18:52:31,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-17 18:52:31,311 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:31,311 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:31,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:52:31,312 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:31,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:31,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1972024210, now seen corresponding path program 1 times [2022-03-17 18:52:31,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:31,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987485081] [2022-03-17 18:52:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:31,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:31,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:31,435 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:52:31,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:31,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987485081] [2022-03-17 18:52:31,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987485081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:31,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:31,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:31,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649107538] [2022-03-17 18:52:31,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:31,437 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:31,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:31,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:31,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:31,437 INFO L87 Difference]: Start difference. First operand 153 states and 234 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:32,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:34,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:36,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:37,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:37,195 INFO L93 Difference]: Finished difference Result 272 states and 418 transitions. [2022-03-17 18:52:37,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:37,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2022-03-17 18:52:37,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:37,197 INFO L225 Difference]: With dead ends: 272 [2022-03-17 18:52:37,197 INFO L226 Difference]: Without dead ends: 272 [2022-03-17 18:52:37,197 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:52:37,198 INFO L912 BasicCegarLoop]: 263 mSDtfsCounter, 147 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:37,198 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 634 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 625 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 18:52:37,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-03-17 18:52:37,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 169. [2022-03-17 18:52:37,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5548780487804879) internal successors, (255), 164 states have internal predecessors, (255), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:37,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 259 transitions. [2022-03-17 18:52:37,220 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 259 transitions. Word has length 55 [2022-03-17 18:52:37,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:37,220 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 259 transitions. [2022-03-17 18:52:37,220 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:37,220 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 259 transitions. [2022-03-17 18:52:37,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-17 18:52:37,221 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:37,221 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:37,222 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:52:37,222 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:37,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:37,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1748095558, now seen corresponding path program 1 times [2022-03-17 18:52:37,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:37,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641506050] [2022-03-17 18:52:37,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:37,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:37,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:37,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:52:37,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:37,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641506050] [2022-03-17 18:52:37,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641506050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:37,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:37,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:37,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319451203] [2022-03-17 18:52:37,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:37,383 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:37,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:37,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:37,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:37,383 INFO L87 Difference]: Start difference. First operand 169 states and 259 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:38,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:40,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:40,819 INFO L93 Difference]: Finished difference Result 185 states and 278 transitions. [2022-03-17 18:52:40,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:40,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-03-17 18:52:40,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:40,820 INFO L225 Difference]: With dead ends: 185 [2022-03-17 18:52:40,820 INFO L226 Difference]: Without dead ends: 185 [2022-03-17 18:52:40,821 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:52:40,821 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:40,822 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 18:52:40,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-17 18:52:40,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-03-17 18:52:40,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.548780487804878) internal successors, (254), 164 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:40,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 258 transitions. [2022-03-17 18:52:40,830 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 258 transitions. Word has length 56 [2022-03-17 18:52:40,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:40,831 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 258 transitions. [2022-03-17 18:52:40,831 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:40,831 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 258 transitions. [2022-03-17 18:52:40,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-17 18:52:40,832 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:40,832 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:40,832 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:52:40,832 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:40,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:40,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1209199142, now seen corresponding path program 1 times [2022-03-17 18:52:40,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:40,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687263398] [2022-03-17 18:52:40,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:40,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:40,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:52:40,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:40,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687263398] [2022-03-17 18:52:40,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687263398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:40,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:40,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:40,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398422922] [2022-03-17 18:52:40,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:40,961 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:40,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:40,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:40,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:40,961 INFO L87 Difference]: Start difference. First operand 169 states and 258 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:43,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:45,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:46,251 INFO L93 Difference]: Finished difference Result 185 states and 277 transitions. [2022-03-17 18:52:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:46,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-03-17 18:52:46,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:46,252 INFO L225 Difference]: With dead ends: 185 [2022-03-17 18:52:46,252 INFO L226 Difference]: Without dead ends: 185 [2022-03-17 18:52:46,254 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:52:46,255 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:46,255 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 18:52:46,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-17 18:52:46,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-03-17 18:52:46,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5426829268292683) internal successors, (253), 164 states have internal predecessors, (253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:46,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 257 transitions. [2022-03-17 18:52:46,260 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 257 transitions. Word has length 56 [2022-03-17 18:52:46,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:46,261 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 257 transitions. [2022-03-17 18:52:46,261 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:46,261 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 257 transitions. [2022-03-17 18:52:46,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-17 18:52:46,262 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:46,262 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:46,262 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:52:46,262 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:46,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:46,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1966452198, now seen corresponding path program 1 times [2022-03-17 18:52:46,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:46,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461618351] [2022-03-17 18:52:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:46,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:46,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:52:46,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:46,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461618351] [2022-03-17 18:52:46,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461618351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:46,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:46,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:46,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156770228] [2022-03-17 18:52:46,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:46,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:46,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:46,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:46,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:46,389 INFO L87 Difference]: Start difference. First operand 169 states and 257 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:47,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:49,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:51,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:51,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:51,609 INFO L93 Difference]: Finished difference Result 183 states and 274 transitions. [2022-03-17 18:52:51,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:51,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-03-17 18:52:51,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:51,611 INFO L225 Difference]: With dead ends: 183 [2022-03-17 18:52:51,611 INFO L226 Difference]: Without dead ends: 183 [2022-03-17 18:52:51,611 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:52:51,612 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:51,612 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 18:52:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-03-17 18:52:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2022-03-17 18:52:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5365853658536586) internal successors, (252), 164 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:51,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 256 transitions. [2022-03-17 18:52:51,618 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 256 transitions. Word has length 56 [2022-03-17 18:52:51,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:51,619 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 256 transitions. [2022-03-17 18:52:51,619 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:51,619 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 256 transitions. [2022-03-17 18:52:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-17 18:52:51,620 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:51,620 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:51,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:52:51,620 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:51,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:51,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1979822394, now seen corresponding path program 1 times [2022-03-17 18:52:51,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:51,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452310135] [2022-03-17 18:52:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:51,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:51,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:51,754 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:52:51,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:51,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452310135] [2022-03-17 18:52:51,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452310135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:51,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:51,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:51,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55475931] [2022-03-17 18:52:51,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:51,756 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:51,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:51,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:51,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:51,757 INFO L87 Difference]: Start difference. First operand 169 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:54,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:54,833 INFO L93 Difference]: Finished difference Result 287 states and 439 transitions. [2022-03-17 18:52:54,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:54,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-03-17 18:52:54,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:54,835 INFO L225 Difference]: With dead ends: 287 [2022-03-17 18:52:54,835 INFO L226 Difference]: Without dead ends: 287 [2022-03-17 18:52:54,835 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:52:54,836 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 145 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:54,836 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-17 18:52:54,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-17 18:52:54,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-03-17 18:52:54,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.543956043956044) internal successors, (281), 182 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:54,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 285 transitions. [2022-03-17 18:52:54,841 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 285 transitions. Word has length 56 [2022-03-17 18:52:54,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:54,841 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 285 transitions. [2022-03-17 18:52:54,841 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 285 transitions. [2022-03-17 18:52:54,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-03-17 18:52:54,842 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:54,842 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:54,842 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:52:54,843 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:54,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:54,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1222198510, now seen corresponding path program 1 times [2022-03-17 18:52:54,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:54,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703854746] [2022-03-17 18:52:54,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:54,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:54,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:52:54,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:54,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703854746] [2022-03-17 18:52:54,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703854746] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:54,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:54,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:54,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849039148] [2022-03-17 18:52:54,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:54,998 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:54,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:54,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:54,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:54,999 INFO L87 Difference]: Start difference. First operand 187 states and 285 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:56,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:59,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:59,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:59,694 INFO L93 Difference]: Finished difference Result 287 states and 436 transitions. [2022-03-17 18:52:59,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:59,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-03-17 18:52:59,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:59,696 INFO L225 Difference]: With dead ends: 287 [2022-03-17 18:52:59,696 INFO L226 Difference]: Without dead ends: 287 [2022-03-17 18:52:59,696 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:52:59,697 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 149 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:59,697 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 18:52:59,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-17 18:52:59,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-03-17 18:52:59,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:59,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-03-17 18:52:59,702 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 57 [2022-03-17 18:52:59,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:59,702 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-03-17 18:52:59,702 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-03-17 18:52:59,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-17 18:52:59,703 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:59,703 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:59,703 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:52:59,703 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:59,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1020945954, now seen corresponding path program 1 times [2022-03-17 18:52:59,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:59,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131012581] [2022-03-17 18:52:59,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:59,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:59,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:59,814 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:52:59,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:59,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131012581] [2022-03-17 18:52:59,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131012581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:59,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:59,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:59,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311743091] [2022-03-17 18:52:59,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:59,815 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:59,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:59,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:59,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:59,816 INFO L87 Difference]: Start difference. First operand 187 states and 282 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:01,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:02,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:04,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:04,306 INFO L93 Difference]: Finished difference Result 200 states and 298 transitions. [2022-03-17 18:53:04,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:04,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2022-03-17 18:53:04,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:04,309 INFO L225 Difference]: With dead ends: 200 [2022-03-17 18:53:04,309 INFO L226 Difference]: Without dead ends: 200 [2022-03-17 18:53:04,309 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:04,310 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:04,310 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 18:53:04,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-03-17 18:53:04,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-03-17 18:53:04,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:04,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-03-17 18:53:04,313 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 58 [2022-03-17 18:53:04,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:04,314 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-03-17 18:53:04,314 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:04,314 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-03-17 18:53:04,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-17 18:53:04,314 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:04,314 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:04,314 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 18:53:04,315 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:04,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:04,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1845134763, now seen corresponding path program 1 times [2022-03-17 18:53:04,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:04,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65114391] [2022-03-17 18:53:04,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:04,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:04,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:04,431 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:53:04,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:04,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65114391] [2022-03-17 18:53:04,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65114391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:04,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:04,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:04,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888894232] [2022-03-17 18:53:04,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:04,432 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:04,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:04,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:04,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:04,432 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:06,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:08,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:08,546 INFO L93 Difference]: Finished difference Result 190 states and 284 transitions. [2022-03-17 18:53:08,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:08,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-17 18:53:08,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:08,547 INFO L225 Difference]: With dead ends: 190 [2022-03-17 18:53:08,547 INFO L226 Difference]: Without dead ends: 190 [2022-03-17 18:53:08,548 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:08,548 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:08,548 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 18:53:08,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-17 18:53:08,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-03-17 18:53:08,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 182 states have internal predecessors, (276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:08,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 280 transitions. [2022-03-17 18:53:08,553 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 280 transitions. Word has length 59 [2022-03-17 18:53:08,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:08,553 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 280 transitions. [2022-03-17 18:53:08,553 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:08,554 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 280 transitions. [2022-03-17 18:53:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-17 18:53:08,554 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:08,554 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:08,555 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 18:53:08,555 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:08,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:08,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1478412284, now seen corresponding path program 1 times [2022-03-17 18:53:08,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:08,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796798888] [2022-03-17 18:53:08,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:08,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:08,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:53:08,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:08,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796798888] [2022-03-17 18:53:08,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796798888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:08,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:08,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:08,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340815112] [2022-03-17 18:53:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:08,680 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:08,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:08,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:08,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:08,688 INFO L87 Difference]: Start difference. First operand 187 states and 280 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:10,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:12,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:13,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:13,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:13,805 INFO L93 Difference]: Finished difference Result 305 states and 461 transitions. [2022-03-17 18:53:13,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:13,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-17 18:53:13,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:13,807 INFO L225 Difference]: With dead ends: 305 [2022-03-17 18:53:13,807 INFO L226 Difference]: Without dead ends: 305 [2022-03-17 18:53:13,807 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:13,807 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 134 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:13,808 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 344 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 18:53:13,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-03-17 18:53:13,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 215. [2022-03-17 18:53:13,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5380952380952382) internal successors, (323), 210 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 327 transitions. [2022-03-17 18:53:13,812 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 327 transitions. Word has length 59 [2022-03-17 18:53:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:13,812 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 327 transitions. [2022-03-17 18:53:13,812 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:13,812 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 327 transitions. [2022-03-17 18:53:13,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-17 18:53:13,812 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:13,812 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:13,812 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 18:53:13,813 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:13,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:13,813 INFO L85 PathProgramCache]: Analyzing trace with hash 478953171, now seen corresponding path program 1 times [2022-03-17 18:53:13,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:13,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217485062] [2022-03-17 18:53:13,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:13,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:13,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:53:13,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:13,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217485062] [2022-03-17 18:53:13,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217485062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:13,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:13,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:13,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815317799] [2022-03-17 18:53:13,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:13,890 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:13,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:13,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:13,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:13,891 INFO L87 Difference]: Start difference. First operand 215 states and 327 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:15,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:17,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:18,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:18,989 INFO L93 Difference]: Finished difference Result 257 states and 388 transitions. [2022-03-17 18:53:18,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:18,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-03-17 18:53:18,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:18,990 INFO L225 Difference]: With dead ends: 257 [2022-03-17 18:53:18,990 INFO L226 Difference]: Without dead ends: 257 [2022-03-17 18:53:18,990 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:18,991 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 31 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:18,991 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 505 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 18:53:18,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-17 18:53:18,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 237. [2022-03-17 18:53:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.543103448275862) internal successors, (358), 232 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:18,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 362 transitions. [2022-03-17 18:53:18,995 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 362 transitions. Word has length 60 [2022-03-17 18:53:18,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:18,995 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 362 transitions. [2022-03-17 18:53:18,995 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:18,995 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 362 transitions. [2022-03-17 18:53:18,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-17 18:53:18,996 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:18,996 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:18,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 18:53:18,996 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:18,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:18,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1095309927, now seen corresponding path program 1 times [2022-03-17 18:53:18,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:18,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941933308] [2022-03-17 18:53:18,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:18,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:19,105 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 18:53:19,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:19,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941933308] [2022-03-17 18:53:19,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941933308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:19,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:19,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:19,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810654496] [2022-03-17 18:53:19,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:19,106 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:19,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:19,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:19,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:19,106 INFO L87 Difference]: Start difference. First operand 237 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:21,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:23,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:24,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:24,196 INFO L93 Difference]: Finished difference Result 250 states and 377 transitions. [2022-03-17 18:53:24,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:24,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-17 18:53:24,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:24,197 INFO L225 Difference]: With dead ends: 250 [2022-03-17 18:53:24,198 INFO L226 Difference]: Without dead ends: 250 [2022-03-17 18:53:24,198 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:24,198 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:24,198 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 576 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 18:53:24,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-03-17 18:53:24,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 237. [2022-03-17 18:53:24,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:24,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 361 transitions. [2022-03-17 18:53:24,203 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 361 transitions. Word has length 74 [2022-03-17 18:53:24,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:24,203 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 361 transitions. [2022-03-17 18:53:24,203 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:24,203 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 361 transitions. [2022-03-17 18:53:24,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-17 18:53:24,204 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:24,204 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:24,204 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 18:53:24,204 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:24,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:24,204 INFO L85 PathProgramCache]: Analyzing trace with hash 725568825, now seen corresponding path program 1 times [2022-03-17 18:53:24,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:24,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969239322] [2022-03-17 18:53:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:24,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:24,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:53:24,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:24,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969239322] [2022-03-17 18:53:24,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969239322] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:24,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:24,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:24,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985897367] [2022-03-17 18:53:24,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:24,325 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:24,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:24,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:24,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:24,325 INFO L87 Difference]: Start difference. First operand 237 states and 361 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:26,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:27,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:27,191 INFO L93 Difference]: Finished difference Result 255 states and 384 transitions. [2022-03-17 18:53:27,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:27,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-17 18:53:27,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:27,192 INFO L225 Difference]: With dead ends: 255 [2022-03-17 18:53:27,192 INFO L226 Difference]: Without dead ends: 255 [2022-03-17 18:53:27,192 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:27,193 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 35 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:27,193 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-17 18:53:27,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-17 18:53:27,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2022-03-17 18:53:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5344827586206897) internal successors, (356), 232 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:27,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 360 transitions. [2022-03-17 18:53:27,196 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 360 transitions. Word has length 74 [2022-03-17 18:53:27,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:27,197 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 360 transitions. [2022-03-17 18:53:27,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:27,197 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2022-03-17 18:53:27,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-17 18:53:27,198 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:27,199 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:27,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 18:53:27,199 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:27,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:27,199 INFO L85 PathProgramCache]: Analyzing trace with hash -409272786, now seen corresponding path program 1 times [2022-03-17 18:53:27,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:27,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462576618] [2022-03-17 18:53:27,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:27,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:27,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:27,305 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-17 18:53:27,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:27,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462576618] [2022-03-17 18:53:27,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462576618] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:27,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:27,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:53:27,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133060659] [2022-03-17 18:53:27,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:27,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:53:27,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:27,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:53:27,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:27,307 INFO L87 Difference]: Start difference. First operand 237 states and 360 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:29,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:30,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:32,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:33,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:33,829 INFO L93 Difference]: Finished difference Result 246 states and 371 transitions. [2022-03-17 18:53:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:53:33,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-17 18:53:33,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:33,830 INFO L225 Difference]: With dead ends: 246 [2022-03-17 18:53:33,830 INFO L226 Difference]: Without dead ends: 246 [2022-03-17 18:53:33,831 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:53:33,831 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:33,831 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-17 18:53:33,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-03-17 18:53:33,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-03-17 18:53:33,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5228215767634854) internal successors, (367), 241 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:33,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 371 transitions. [2022-03-17 18:53:33,835 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 371 transitions. Word has length 75 [2022-03-17 18:53:33,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:33,835 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 371 transitions. [2022-03-17 18:53:33,835 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:33,835 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 371 transitions. [2022-03-17 18:53:33,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-17 18:53:33,836 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:33,836 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:33,836 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 18:53:33,836 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:33,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:33,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2074107470, now seen corresponding path program 1 times [2022-03-17 18:53:33,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:33,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908055910] [2022-03-17 18:53:33,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:33,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:33,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:33,940 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:53:33,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:33,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908055910] [2022-03-17 18:53:33,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908055910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:33,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:33,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:33,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625902207] [2022-03-17 18:53:33,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:33,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:33,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:33,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:33,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:33,941 INFO L87 Difference]: Start difference. First operand 246 states and 371 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:36,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:36,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:36,708 INFO L93 Difference]: Finished difference Result 273 states and 405 transitions. [2022-03-17 18:53:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:36,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-17 18:53:36,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:36,709 INFO L225 Difference]: With dead ends: 273 [2022-03-17 18:53:36,710 INFO L226 Difference]: Without dead ends: 273 [2022-03-17 18:53:36,710 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:36,710 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:36,710 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-17 18:53:36,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-03-17 18:53:36,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 246. [2022-03-17 18:53:36,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5186721991701244) internal successors, (366), 241 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:36,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 370 transitions. [2022-03-17 18:53:36,714 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 370 transitions. Word has length 75 [2022-03-17 18:53:36,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:36,714 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 370 transitions. [2022-03-17 18:53:36,714 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:36,715 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 370 transitions. [2022-03-17 18:53:36,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-17 18:53:36,715 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:36,715 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:36,715 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 18:53:36,715 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:36,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:36,716 INFO L85 PathProgramCache]: Analyzing trace with hash -2128965550, now seen corresponding path program 1 times [2022-03-17 18:53:36,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:36,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981517058] [2022-03-17 18:53:36,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:36,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:36,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:36,806 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:53:36,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:36,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981517058] [2022-03-17 18:53:36,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981517058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:36,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:36,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:36,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45743672] [2022-03-17 18:53:36,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:36,806 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:36,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:36,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:36,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:36,807 INFO L87 Difference]: Start difference. First operand 246 states and 370 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:39,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:41,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:42,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:42,251 INFO L93 Difference]: Finished difference Result 355 states and 531 transitions. [2022-03-17 18:53:42,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:42,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-17 18:53:42,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:42,252 INFO L225 Difference]: With dead ends: 355 [2022-03-17 18:53:42,252 INFO L226 Difference]: Without dead ends: 355 [2022-03-17 18:53:42,252 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:42,253 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 148 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:42,253 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 18:53:42,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-17 18:53:42,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-03-17 18:53:42,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5020746887966805) internal successors, (362), 241 states have internal predecessors, (362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:42,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 366 transitions. [2022-03-17 18:53:42,257 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 366 transitions. Word has length 77 [2022-03-17 18:53:42,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:42,257 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 366 transitions. [2022-03-17 18:53:42,257 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 366 transitions. [2022-03-17 18:53:42,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-17 18:53:42,257 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:42,257 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:42,258 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 18:53:42,258 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:42,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:42,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1952802305, now seen corresponding path program 1 times [2022-03-17 18:53:42,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:42,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098578806] [2022-03-17 18:53:42,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:42,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:42,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:42,352 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:53:42,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:42,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098578806] [2022-03-17 18:53:42,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098578806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:42,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:42,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:42,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338175806] [2022-03-17 18:53:42,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:42,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:42,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:42,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:42,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:42,354 INFO L87 Difference]: Start difference. First operand 246 states and 366 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:44,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:46,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:48,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:48,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:48,702 INFO L93 Difference]: Finished difference Result 355 states and 527 transitions. [2022-03-17 18:53:48,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:48,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-17 18:53:48,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:48,704 INFO L225 Difference]: With dead ends: 355 [2022-03-17 18:53:48,704 INFO L226 Difference]: Without dead ends: 355 [2022-03-17 18:53:48,704 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:48,704 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 146 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:48,705 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 18:53:48,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-17 18:53:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-03-17 18:53:48,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.4854771784232366) internal successors, (358), 241 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:48,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 362 transitions. [2022-03-17 18:53:48,708 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 362 transitions. Word has length 78 [2022-03-17 18:53:48,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:48,708 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 362 transitions. [2022-03-17 18:53:48,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:48,709 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 362 transitions. [2022-03-17 18:53:48,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-17 18:53:48,709 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:48,709 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:48,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 18:53:48,709 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:48,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:48,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2041710414, now seen corresponding path program 1 times [2022-03-17 18:53:48,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:48,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672235071] [2022-03-17 18:53:48,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:48,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:48,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:48,828 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:53:48,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:48,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672235071] [2022-03-17 18:53:48,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672235071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:48,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:48,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:48,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858440711] [2022-03-17 18:53:48,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:48,829 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:48,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:48,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:48,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:48,829 INFO L87 Difference]: Start difference. First operand 246 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:50,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:51,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:51,303 INFO L93 Difference]: Finished difference Result 353 states and 517 transitions. [2022-03-17 18:53:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:51,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-17 18:53:51,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:51,305 INFO L225 Difference]: With dead ends: 353 [2022-03-17 18:53:51,305 INFO L226 Difference]: Without dead ends: 353 [2022-03-17 18:53:51,305 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:51,305 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 90 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:51,305 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 513 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 523 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:53:51,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-03-17 18:53:51,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 277. [2022-03-17 18:53:51,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.4926470588235294) internal successors, (406), 272 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:51,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 410 transitions. [2022-03-17 18:53:51,310 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 410 transitions. Word has length 82 [2022-03-17 18:53:51,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:51,310 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 410 transitions. [2022-03-17 18:53:51,310 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:51,310 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 410 transitions. [2022-03-17 18:53:51,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-17 18:53:51,311 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:51,311 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:51,311 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 18:53:51,311 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:51,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:51,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1016218415, now seen corresponding path program 1 times [2022-03-17 18:53:51,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:51,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946113282] [2022-03-17 18:53:51,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:51,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:51,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:51,417 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:53:51,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:51,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946113282] [2022-03-17 18:53:51,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946113282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:51,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:51,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:51,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808142738] [2022-03-17 18:53:51,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:51,418 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:51,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:51,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:51,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:51,419 INFO L87 Difference]: Start difference. First operand 277 states and 410 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:53,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:54,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:54,792 INFO L93 Difference]: Finished difference Result 335 states and 491 transitions. [2022-03-17 18:53:54,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:54,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-17 18:53:54,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:54,794 INFO L225 Difference]: With dead ends: 335 [2022-03-17 18:53:54,794 INFO L226 Difference]: Without dead ends: 335 [2022-03-17 18:53:54,795 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:54,795 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 37 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:54,795 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 605 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 18:53:54,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-03-17 18:53:54,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 301. [2022-03-17 18:53:54,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 296 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:54,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 447 transitions. [2022-03-17 18:53:54,800 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 447 transitions. Word has length 82 [2022-03-17 18:53:54,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:54,800 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 447 transitions. [2022-03-17 18:53:54,800 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:54,800 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 447 transitions. [2022-03-17 18:53:54,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-17 18:53:54,801 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:54,801 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:54,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 18:53:54,801 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:54,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:54,802 INFO L85 PathProgramCache]: Analyzing trace with hash -358305085, now seen corresponding path program 1 times [2022-03-17 18:53:54,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:54,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031893029] [2022-03-17 18:53:54,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:54,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:54,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:54,928 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:53:54,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:54,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031893029] [2022-03-17 18:53:54,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031893029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:54,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:54,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:54,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084582716] [2022-03-17 18:53:54,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:54,929 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:54,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:54,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:54,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:54,929 INFO L87 Difference]: Start difference. First operand 301 states and 447 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:56,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:58,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:58,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:58,600 INFO L93 Difference]: Finished difference Result 400 states and 594 transitions. [2022-03-17 18:53:58,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:58,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-17 18:53:58,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:58,602 INFO L225 Difference]: With dead ends: 400 [2022-03-17 18:53:58,602 INFO L226 Difference]: Without dead ends: 400 [2022-03-17 18:53:58,602 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:53:58,603 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 149 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:58,603 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 346 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-17 18:53:58,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-03-17 18:53:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 301. [2022-03-17 18:53:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4763513513513513) internal successors, (437), 296 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 441 transitions. [2022-03-17 18:53:58,609 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 441 transitions. Word has length 87 [2022-03-17 18:53:58,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:58,609 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 441 transitions. [2022-03-17 18:53:58,609 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:58,609 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 441 transitions. [2022-03-17 18:53:58,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-17 18:53:58,610 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:58,610 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:58,610 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 18:53:58,610 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:58,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:58,610 INFO L85 PathProgramCache]: Analyzing trace with hash -627016711, now seen corresponding path program 1 times [2022-03-17 18:53:58,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:58,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759593170] [2022-03-17 18:53:58,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:58,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:58,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:58,722 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:53:58,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:58,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759593170] [2022-03-17 18:53:58,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759593170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:58,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:58,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:58,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924562386] [2022-03-17 18:53:58,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:58,724 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:58,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:58,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:58,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:58,724 INFO L87 Difference]: Start difference. First operand 301 states and 441 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:00,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:01,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:03,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:03,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:03,592 INFO L93 Difference]: Finished difference Result 429 states and 638 transitions. [2022-03-17 18:54:03,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:54:03,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-17 18:54:03,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:03,594 INFO L225 Difference]: With dead ends: 429 [2022-03-17 18:54:03,594 INFO L226 Difference]: Without dead ends: 429 [2022-03-17 18:54:03,594 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:54:03,595 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 120 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:03,595 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 346 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 18:54:03,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-17 18:54:03,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 351. [2022-03-17 18:54:03,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 346 states have (on average 1.5115606936416186) internal successors, (523), 346 states have internal predecessors, (523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:03,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 527 transitions. [2022-03-17 18:54:03,599 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 527 transitions. Word has length 87 [2022-03-17 18:54:03,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:03,600 INFO L478 AbstractCegarLoop]: Abstraction has 351 states and 527 transitions. [2022-03-17 18:54:03,600 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:03,600 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 527 transitions. [2022-03-17 18:54:03,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-17 18:54:03,600 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:03,600 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:03,600 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 18:54:03,601 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:03,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:03,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2038270526, now seen corresponding path program 1 times [2022-03-17 18:54:03,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:03,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528968820] [2022-03-17 18:54:03,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:03,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:03,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:03,721 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:54:03,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:03,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528968820] [2022-03-17 18:54:03,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528968820] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:03,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:03,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:54:03,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743936095] [2022-03-17 18:54:03,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:03,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:54:03,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:03,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:54:03,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:54:03,723 INFO L87 Difference]: Start difference. First operand 351 states and 527 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:05,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:06,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:06,192 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2022-03-17 18:54:06,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:54:06,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-17 18:54:06,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:06,193 INFO L225 Difference]: With dead ends: 411 [2022-03-17 18:54:06,193 INFO L226 Difference]: Without dead ends: 411 [2022-03-17 18:54:06,193 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:54:06,194 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 71 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:06,194 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 483 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:54:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-03-17 18:54:06,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 362. [2022-03-17 18:54:06,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5210084033613445) internal successors, (543), 357 states have internal predecessors, (543), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:06,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 547 transitions. [2022-03-17 18:54:06,198 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 547 transitions. Word has length 88 [2022-03-17 18:54:06,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:06,198 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 547 transitions. [2022-03-17 18:54:06,199 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:06,199 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 547 transitions. [2022-03-17 18:54:06,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-17 18:54:06,199 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:06,199 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:06,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 18:54:06,200 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:06,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:06,200 INFO L85 PathProgramCache]: Analyzing trace with hash -987048744, now seen corresponding path program 1 times [2022-03-17 18:54:06,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:06,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043061615] [2022-03-17 18:54:06,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:06,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:06,294 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:54:06,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:06,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043061615] [2022-03-17 18:54:06,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043061615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:06,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:06,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:54:06,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265496024] [2022-03-17 18:54:06,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:06,295 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:54:06,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:06,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:54:06,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:54:06,295 INFO L87 Difference]: Start difference. First operand 362 states and 547 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:09,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:11,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:12,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:12,314 INFO L93 Difference]: Finished difference Result 451 states and 675 transitions. [2022-03-17 18:54:12,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:54:12,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-03-17 18:54:12,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:12,335 INFO L225 Difference]: With dead ends: 451 [2022-03-17 18:54:12,335 INFO L226 Difference]: Without dead ends: 451 [2022-03-17 18:54:12,335 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:54:12,336 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 142 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:12,336 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 18:54:12,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-03-17 18:54:12,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 362. [2022-03-17 18:54:12,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5070028011204482) internal successors, (538), 357 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 542 transitions. [2022-03-17 18:54:12,340 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 542 transitions. Word has length 96 [2022-03-17 18:54:12,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:12,341 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 542 transitions. [2022-03-17 18:54:12,341 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:12,341 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 542 transitions. [2022-03-17 18:54:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-17 18:54:12,341 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:12,342 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:12,342 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 18:54:12,342 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:12,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:12,342 INFO L85 PathProgramCache]: Analyzing trace with hash 522570383, now seen corresponding path program 1 times [2022-03-17 18:54:12,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:12,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018362985] [2022-03-17 18:54:12,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:12,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:12,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:12,437 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:54:12,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:12,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018362985] [2022-03-17 18:54:12,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018362985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:12,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:12,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:54:12,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206292639] [2022-03-17 18:54:12,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:12,437 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:54:12,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:12,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:54:12,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:54:12,438 INFO L87 Difference]: Start difference. First operand 362 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:15,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:16,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:17,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:17,205 INFO L93 Difference]: Finished difference Result 441 states and 656 transitions. [2022-03-17 18:54:17,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:54:17,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-17 18:54:17,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:17,207 INFO L225 Difference]: With dead ends: 441 [2022-03-17 18:54:17,207 INFO L226 Difference]: Without dead ends: 441 [2022-03-17 18:54:17,207 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:54:17,208 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 139 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:17,208 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 368 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 18:54:17,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-03-17 18:54:17,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 362. [2022-03-17 18:54:17,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4901960784313726) internal successors, (532), 357 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:17,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 536 transitions. [2022-03-17 18:54:17,212 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 536 transitions. Word has length 97 [2022-03-17 18:54:17,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:17,212 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 536 transitions. [2022-03-17 18:54:17,212 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:17,212 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 536 transitions. [2022-03-17 18:54:17,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-17 18:54:17,213 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:17,213 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:17,213 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 18:54:17,213 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:17,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:17,214 INFO L85 PathProgramCache]: Analyzing trace with hash 39070128, now seen corresponding path program 1 times [2022-03-17 18:54:17,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:17,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750169425] [2022-03-17 18:54:17,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:17,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:54:17,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:17,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750169425] [2022-03-17 18:54:17,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750169425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:17,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:17,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:54:17,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436480931] [2022-03-17 18:54:17,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:17,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:54:17,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:17,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:54:17,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:54:17,331 INFO L87 Difference]: Start difference. First operand 362 states and 536 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:18,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:20,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:22,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:22,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:22,434 INFO L93 Difference]: Finished difference Result 399 states and 586 transitions. [2022-03-17 18:54:22,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:54:22,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-17 18:54:22,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:22,436 INFO L225 Difference]: With dead ends: 399 [2022-03-17 18:54:22,436 INFO L226 Difference]: Without dead ends: 399 [2022-03-17 18:54:22,436 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:54:22,436 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 77 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:22,436 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 515 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 18:54:22,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-03-17 18:54:22,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 362. [2022-03-17 18:54:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4873949579831933) internal successors, (531), 357 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:22,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 535 transitions. [2022-03-17 18:54:22,440 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 535 transitions. Word has length 104 [2022-03-17 18:54:22,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:22,440 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 535 transitions. [2022-03-17 18:54:22,441 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:22,441 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 535 transitions. [2022-03-17 18:54:22,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-17 18:54:22,441 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:22,441 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:22,441 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 18:54:22,442 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:22,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:22,442 INFO L85 PathProgramCache]: Analyzing trace with hash 59407503, now seen corresponding path program 1 times [2022-03-17 18:54:22,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:22,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479322346] [2022-03-17 18:54:22,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:22,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-17 18:54:22,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:22,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479322346] [2022-03-17 18:54:22,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479322346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:22,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:22,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:22,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367816140] [2022-03-17 18:54:22,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:22,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:22,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:22,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:22,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:22,535 INFO L87 Difference]: Start difference. First operand 362 states and 535 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:24,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:24,597 INFO L93 Difference]: Finished difference Result 693 states and 1026 transitions. [2022-03-17 18:54:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:24,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-17 18:54:24,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:24,599 INFO L225 Difference]: With dead ends: 693 [2022-03-17 18:54:24,599 INFO L226 Difference]: Without dead ends: 693 [2022-03-17 18:54:24,599 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:24,600 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:24,600 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 435 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-17 18:54:24,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-03-17 18:54:24,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2022-03-17 18:54:24,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 688 states have (on average 1.4854651162790697) internal successors, (1022), 688 states have internal predecessors, (1022), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:24,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1026 transitions. [2022-03-17 18:54:24,607 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1026 transitions. Word has length 104 [2022-03-17 18:54:24,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:24,608 INFO L478 AbstractCegarLoop]: Abstraction has 693 states and 1026 transitions. [2022-03-17 18:54:24,608 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:24,608 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1026 transitions. [2022-03-17 18:54:24,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-17 18:54:24,609 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:24,609 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:24,609 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 18:54:24,609 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:24,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:24,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1871211602, now seen corresponding path program 1 times [2022-03-17 18:54:24,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:24,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9301575] [2022-03-17 18:54:24,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:24,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:24,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:24,677 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 18:54:24,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:24,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9301575] [2022-03-17 18:54:24,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9301575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:24,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:24,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:24,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685430696] [2022-03-17 18:54:24,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:24,677 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:24,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:24,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:24,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:24,678 INFO L87 Difference]: Start difference. First operand 693 states and 1026 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:26,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:28,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:28,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:28,619 INFO L93 Difference]: Finished difference Result 720 states and 1061 transitions. [2022-03-17 18:54:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:28,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-17 18:54:28,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:28,621 INFO L225 Difference]: With dead ends: 720 [2022-03-17 18:54:28,621 INFO L226 Difference]: Without dead ends: 720 [2022-03-17 18:54:28,621 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:28,622 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:28,622 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 18:54:28,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-03-17 18:54:28,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2022-03-17 18:54:28,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.4783216783216784) internal successors, (1057), 715 states have internal predecessors, (1057), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:28,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1061 transitions. [2022-03-17 18:54:28,628 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1061 transitions. Word has length 104 [2022-03-17 18:54:28,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:28,628 INFO L478 AbstractCegarLoop]: Abstraction has 720 states and 1061 transitions. [2022-03-17 18:54:28,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:28,628 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1061 transitions. [2022-03-17 18:54:28,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-17 18:54:28,629 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:28,630 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:28,630 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 18:54:28,630 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:28,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:28,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1451694771, now seen corresponding path program 1 times [2022-03-17 18:54:28,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:28,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337858960] [2022-03-17 18:54:28,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:28,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:28,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-03-17 18:54:28,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:28,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337858960] [2022-03-17 18:54:28,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337858960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:28,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:28,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:28,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179769391] [2022-03-17 18:54:28,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:28,698 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:28,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:28,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:28,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:28,698 INFO L87 Difference]: Start difference. First operand 720 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:30,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:32,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:32,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:32,557 INFO L93 Difference]: Finished difference Result 722 states and 1063 transitions. [2022-03-17 18:54:32,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:32,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-17 18:54:32,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:32,559 INFO L225 Difference]: With dead ends: 722 [2022-03-17 18:54:32,559 INFO L226 Difference]: Without dead ends: 722 [2022-03-17 18:54:32,559 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:32,559 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:32,560 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 18:54:32,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-03-17 18:54:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2022-03-17 18:54:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 717 states have (on average 1.4769874476987448) internal successors, (1059), 717 states have internal predecessors, (1059), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:32,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1063 transitions. [2022-03-17 18:54:32,566 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1063 transitions. Word has length 104 [2022-03-17 18:54:32,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:32,566 INFO L478 AbstractCegarLoop]: Abstraction has 722 states and 1063 transitions. [2022-03-17 18:54:32,566 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1063 transitions. [2022-03-17 18:54:32,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-17 18:54:32,567 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:32,569 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:32,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 18:54:32,569 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:32,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:32,569 INFO L85 PathProgramCache]: Analyzing trace with hash -2030270456, now seen corresponding path program 1 times [2022-03-17 18:54:32,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:32,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964203729] [2022-03-17 18:54:32,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:32,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:32,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:32,650 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:54:32,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:32,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964203729] [2022-03-17 18:54:32,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964203729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:32,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:32,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:32,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030125017] [2022-03-17 18:54:32,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:32,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:32,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:32,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:32,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:32,652 INFO L87 Difference]: Start difference. First operand 722 states and 1063 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:34,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:36,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:37,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:37,396 INFO L93 Difference]: Finished difference Result 1058 states and 1566 transitions. [2022-03-17 18:54:37,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:37,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-03-17 18:54:37,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:37,399 INFO L225 Difference]: With dead ends: 1058 [2022-03-17 18:54:37,399 INFO L226 Difference]: Without dead ends: 1058 [2022-03-17 18:54:37,399 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:37,400 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:37,400 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 379 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 18:54:37,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-03-17 18:54:37,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1056. [2022-03-17 18:54:37,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.4852521408182684) internal successors, (1561), 1051 states have internal predecessors, (1561), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:37,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1565 transitions. [2022-03-17 18:54:37,413 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1565 transitions. Word has length 106 [2022-03-17 18:54:37,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:37,414 INFO L478 AbstractCegarLoop]: Abstraction has 1056 states and 1565 transitions. [2022-03-17 18:54:37,414 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1565 transitions. [2022-03-17 18:54:37,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-17 18:54:37,415 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:37,415 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:37,415 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 18:54:37,415 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:37,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:37,415 INFO L85 PathProgramCache]: Analyzing trace with hash 538755348, now seen corresponding path program 1 times [2022-03-17 18:54:37,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:37,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816460051] [2022-03-17 18:54:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:37,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:37,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:37,556 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:54:37,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:37,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816460051] [2022-03-17 18:54:37,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816460051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:37,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:37,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:37,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161923436] [2022-03-17 18:54:37,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:37,557 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:37,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:37,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:37,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:37,557 INFO L87 Difference]: Start difference. First operand 1056 states and 1565 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:39,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:40,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:40,242 INFO L93 Difference]: Finished difference Result 1392 states and 2054 transitions. [2022-03-17 18:54:40,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:40,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-17 18:54:40,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:40,246 INFO L225 Difference]: With dead ends: 1392 [2022-03-17 18:54:40,246 INFO L226 Difference]: Without dead ends: 1392 [2022-03-17 18:54:40,246 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:40,247 INFO L912 BasicCegarLoop]: 382 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:40,247 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 576 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-17 18:54:40,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-03-17 18:54:40,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1390. [2022-03-17 18:54:40,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1385 states have (on average 1.47942238267148) internal successors, (2049), 1385 states have internal predecessors, (2049), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:40,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2053 transitions. [2022-03-17 18:54:40,259 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2053 transitions. Word has length 112 [2022-03-17 18:54:40,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:40,259 INFO L478 AbstractCegarLoop]: Abstraction has 1390 states and 2053 transitions. [2022-03-17 18:54:40,259 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:40,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2053 transitions. [2022-03-17 18:54:40,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-03-17 18:54:40,261 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:40,261 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:40,261 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 18:54:40,261 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:40,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:40,262 INFO L85 PathProgramCache]: Analyzing trace with hash 566693233, now seen corresponding path program 1 times [2022-03-17 18:54:40,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:40,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909791733] [2022-03-17 18:54:40,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:40,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:40,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:40,349 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:54:40,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:40,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909791733] [2022-03-17 18:54:40,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909791733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:40,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:40,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:54:40,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231597471] [2022-03-17 18:54:40,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:40,349 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:54:40,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:40,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:54:40,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:54:40,350 INFO L87 Difference]: Start difference. First operand 1390 states and 2053 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:42,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:44,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:46,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:46,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:46,789 INFO L93 Difference]: Finished difference Result 1648 states and 2429 transitions. [2022-03-17 18:54:46,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:54:46,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2022-03-17 18:54:46,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:46,792 INFO L225 Difference]: With dead ends: 1648 [2022-03-17 18:54:46,796 INFO L226 Difference]: Without dead ends: 1648 [2022-03-17 18:54:46,796 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:54:46,798 INFO L912 BasicCegarLoop]: 271 mSDtfsCounter, 72 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:46,798 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 654 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 595 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 18:54:46,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2022-03-17 18:54:46,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1477. [2022-03-17 18:54:46,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1472 states have (on average 1.481657608695652) internal successors, (2181), 1472 states have internal predecessors, (2181), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:46,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2185 transitions. [2022-03-17 18:54:46,820 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2185 transitions. Word has length 129 [2022-03-17 18:54:46,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:46,820 INFO L478 AbstractCegarLoop]: Abstraction has 1477 states and 2185 transitions. [2022-03-17 18:54:46,820 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:46,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2185 transitions. [2022-03-17 18:54:46,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 18:54:46,823 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:46,823 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:46,823 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 18:54:46,823 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:46,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:46,824 INFO L85 PathProgramCache]: Analyzing trace with hash -224082698, now seen corresponding path program 1 times [2022-03-17 18:54:46,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:46,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318481420] [2022-03-17 18:54:46,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:46,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:46,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:46,947 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-17 18:54:46,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:46,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318481420] [2022-03-17 18:54:46,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318481420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:46,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:46,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:46,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375313974] [2022-03-17 18:54:46,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:46,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:46,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:46,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:46,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:46,949 INFO L87 Difference]: Start difference. First operand 1477 states and 2185 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:48,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:50,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:50,299 INFO L93 Difference]: Finished difference Result 1842 states and 2726 transitions. [2022-03-17 18:54:50,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:50,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-17 18:54:50,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:50,303 INFO L225 Difference]: With dead ends: 1842 [2022-03-17 18:54:50,303 INFO L226 Difference]: Without dead ends: 1842 [2022-03-17 18:54:50,307 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:50,308 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:50,308 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 18:54:50,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2022-03-17 18:54:50,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1840. [2022-03-17 18:54:50,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1835 states have (on average 1.48283378746594) internal successors, (2721), 1835 states have internal predecessors, (2721), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:50,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2725 transitions. [2022-03-17 18:54:50,326 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2725 transitions. Word has length 134 [2022-03-17 18:54:50,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:50,326 INFO L478 AbstractCegarLoop]: Abstraction has 1840 states and 2725 transitions. [2022-03-17 18:54:50,326 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:50,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2725 transitions. [2022-03-17 18:54:50,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-17 18:54:50,328 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:50,328 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:50,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 18:54:50,328 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:50,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:50,329 INFO L85 PathProgramCache]: Analyzing trace with hash -2056958033, now seen corresponding path program 1 times [2022-03-17 18:54:50,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:50,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598664354] [2022-03-17 18:54:50,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:50,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:54:50,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:50,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598664354] [2022-03-17 18:54:50,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598664354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:50,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:50,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:54:50,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254576104] [2022-03-17 18:54:50,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:50,422 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:54:50,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:50,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:54:50,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:54:50,422 INFO L87 Difference]: Start difference. First operand 1840 states and 2725 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:52,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:54,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:56,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:56,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:56,536 INFO L93 Difference]: Finished difference Result 2067 states and 3044 transitions. [2022-03-17 18:54:56,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:54:56,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-03-17 18:54:56,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:56,541 INFO L225 Difference]: With dead ends: 2067 [2022-03-17 18:54:56,541 INFO L226 Difference]: Without dead ends: 2067 [2022-03-17 18:54:56,542 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:54:56,552 INFO L912 BasicCegarLoop]: 270 mSDtfsCounter, 87 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:56,552 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 652 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 594 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 18:54:56,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2022-03-17 18:54:56,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1840. [2022-03-17 18:54:56,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1835 states have (on average 1.4806539509536785) internal successors, (2717), 1835 states have internal predecessors, (2717), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2721 transitions. [2022-03-17 18:54:56,571 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2721 transitions. Word has length 151 [2022-03-17 18:54:56,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:56,571 INFO L478 AbstractCegarLoop]: Abstraction has 1840 states and 2721 transitions. [2022-03-17 18:54:56,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:56,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2721 transitions. [2022-03-17 18:54:56,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 18:54:56,573 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:56,573 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:56,574 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 18:54:56,574 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:56,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:56,574 INFO L85 PathProgramCache]: Analyzing trace with hash -2049187141, now seen corresponding path program 1 times [2022-03-17 18:54:56,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:56,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266098204] [2022-03-17 18:54:56,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:56,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:56,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:54:56,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:56,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266098204] [2022-03-17 18:54:56,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266098204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:56,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:56,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:54:56,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209317195] [2022-03-17 18:54:56,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:56,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:54:56,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:56,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:54:56,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:54:56,686 INFO L87 Difference]: Start difference. First operand 1840 states and 2721 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:59,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:00,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:01,298 INFO L93 Difference]: Finished difference Result 2047 states and 3015 transitions. [2022-03-17 18:55:01,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:01,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-17 18:55:01,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:01,303 INFO L225 Difference]: With dead ends: 2047 [2022-03-17 18:55:01,303 INFO L226 Difference]: Without dead ends: 2047 [2022-03-17 18:55:01,319 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:01,320 INFO L912 BasicCegarLoop]: 264 mSDtfsCounter, 79 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:01,320 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 640 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 18:55:01,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2022-03-17 18:55:01,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1840. [2022-03-17 18:55:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1835 states have (on average 1.4784741144414169) internal successors, (2713), 1835 states have internal predecessors, (2713), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:01,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2717 transitions. [2022-03-17 18:55:01,340 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2717 transitions. Word has length 152 [2022-03-17 18:55:01,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:01,340 INFO L478 AbstractCegarLoop]: Abstraction has 1840 states and 2717 transitions. [2022-03-17 18:55:01,340 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:01,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2717 transitions. [2022-03-17 18:55:01,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 18:55:01,343 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:01,343 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:01,343 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 18:55:01,343 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:01,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:01,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1005470395, now seen corresponding path program 1 times [2022-03-17 18:55:01,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:01,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966443164] [2022-03-17 18:55:01,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:01,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:01,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:01,436 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:01,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:01,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966443164] [2022-03-17 18:55:01,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966443164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:01,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:01,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:01,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708720164] [2022-03-17 18:55:01,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:01,437 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:01,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:01,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:01,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:01,438 INFO L87 Difference]: Start difference. First operand 1840 states and 2717 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:03,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:05,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:07,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:08,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:08,190 INFO L93 Difference]: Finished difference Result 2015 states and 2959 transitions. [2022-03-17 18:55:08,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:08,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-17 18:55:08,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:08,195 INFO L225 Difference]: With dead ends: 2015 [2022-03-17 18:55:08,195 INFO L226 Difference]: Without dead ends: 2015 [2022-03-17 18:55:08,195 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:08,196 INFO L912 BasicCegarLoop]: 259 mSDtfsCounter, 65 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:08,196 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 630 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 544 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-17 18:55:08,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2022-03-17 18:55:08,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1824. [2022-03-17 18:55:08,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1819 states have (on average 1.4760857614073666) internal successors, (2685), 1819 states have internal predecessors, (2685), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:08,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2689 transitions. [2022-03-17 18:55:08,244 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2689 transitions. Word has length 155 [2022-03-17 18:55:08,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:08,244 INFO L478 AbstractCegarLoop]: Abstraction has 1824 states and 2689 transitions. [2022-03-17 18:55:08,245 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:08,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2689 transitions. [2022-03-17 18:55:08,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 18:55:08,247 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:08,247 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:08,247 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 18:55:08,247 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:08,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:08,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1789143693, now seen corresponding path program 1 times [2022-03-17 18:55:08,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:08,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102076358] [2022-03-17 18:55:08,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:08,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:08,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:08,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:08,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102076358] [2022-03-17 18:55:08,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102076358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:08,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:08,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:08,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664997279] [2022-03-17 18:55:08,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:08,343 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:08,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:08,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:08,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:08,343 INFO L87 Difference]: Start difference. First operand 1824 states and 2689 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:12,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:13,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:13,391 INFO L93 Difference]: Finished difference Result 2015 states and 2955 transitions. [2022-03-17 18:55:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:13,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-17 18:55:13,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:13,411 INFO L225 Difference]: With dead ends: 2015 [2022-03-17 18:55:13,411 INFO L226 Difference]: Without dead ends: 2015 [2022-03-17 18:55:13,411 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:13,413 INFO L912 BasicCegarLoop]: 258 mSDtfsCounter, 63 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:13,413 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 628 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 544 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:55:13,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2022-03-17 18:55:13,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1844. [2022-03-17 18:55:13,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1839 states have (on average 1.475258292550299) internal successors, (2713), 1839 states have internal predecessors, (2713), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:13,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2717 transitions. [2022-03-17 18:55:13,431 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2717 transitions. Word has length 156 [2022-03-17 18:55:13,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:13,431 INFO L478 AbstractCegarLoop]: Abstraction has 1844 states and 2717 transitions. [2022-03-17 18:55:13,431 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:13,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2717 transitions. [2022-03-17 18:55:13,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-17 18:55:13,433 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:13,433 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:13,433 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 18:55:13,433 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:13,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:13,434 INFO L85 PathProgramCache]: Analyzing trace with hash -116849752, now seen corresponding path program 1 times [2022-03-17 18:55:13,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:13,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078572375] [2022-03-17 18:55:13,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:13,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:13,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:13,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:13,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078572375] [2022-03-17 18:55:13,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078572375] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:13,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:13,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:13,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397310007] [2022-03-17 18:55:13,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:13,546 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:13,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:13,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:13,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:13,548 INFO L87 Difference]: Start difference. First operand 1844 states and 2717 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:15,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:15,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:15,999 INFO L93 Difference]: Finished difference Result 2015 states and 2951 transitions. [2022-03-17 18:55:15,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:15,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-17 18:55:16,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:16,003 INFO L225 Difference]: With dead ends: 2015 [2022-03-17 18:55:16,004 INFO L226 Difference]: Without dead ends: 2015 [2022-03-17 18:55:16,004 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:16,004 INFO L912 BasicCegarLoop]: 257 mSDtfsCounter, 66 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:16,004 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 626 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 540 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:55:16,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2022-03-17 18:55:16,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1844. [2022-03-17 18:55:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1839 states have (on average 1.473083197389886) internal successors, (2709), 1839 states have internal predecessors, (2709), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:16,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2713 transitions. [2022-03-17 18:55:16,022 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2713 transitions. Word has length 157 [2022-03-17 18:55:16,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:16,022 INFO L478 AbstractCegarLoop]: Abstraction has 1844 states and 2713 transitions. [2022-03-17 18:55:16,022 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:16,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2713 transitions. [2022-03-17 18:55:16,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-17 18:55:16,024 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:16,024 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:16,024 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 18:55:16,024 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:16,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:16,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1499023576, now seen corresponding path program 1 times [2022-03-17 18:55:16,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:16,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590423211] [2022-03-17 18:55:16,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:16,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:16,113 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:16,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:16,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590423211] [2022-03-17 18:55:16,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590423211] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:16,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:16,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:16,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646859352] [2022-03-17 18:55:16,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:16,114 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:16,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:16,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:16,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:16,115 INFO L87 Difference]: Start difference. First operand 1844 states and 2713 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:19,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:19,325 INFO L93 Difference]: Finished difference Result 2231 states and 3262 transitions. [2022-03-17 18:55:19,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:19,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-17 18:55:19,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:19,330 INFO L225 Difference]: With dead ends: 2231 [2022-03-17 18:55:19,330 INFO L226 Difference]: Without dead ends: 2231 [2022-03-17 18:55:19,330 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:19,330 INFO L912 BasicCegarLoop]: 132 mSDtfsCounter, 118 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:19,330 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 372 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 18:55:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-03-17 18:55:19,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1859. [2022-03-17 18:55:19,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1854 states have (on average 1.4692556634304208) internal successors, (2724), 1854 states have internal predecessors, (2724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2728 transitions. [2022-03-17 18:55:19,348 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2728 transitions. Word has length 157 [2022-03-17 18:55:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:19,348 INFO L478 AbstractCegarLoop]: Abstraction has 1859 states and 2728 transitions. [2022-03-17 18:55:19,348 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:19,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2728 transitions. [2022-03-17 18:55:19,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-17 18:55:19,350 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:19,350 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:19,350 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 18:55:19,350 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:19,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1141285446, now seen corresponding path program 1 times [2022-03-17 18:55:19,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:19,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331991443] [2022-03-17 18:55:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:19,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:19,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:19,440 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:19,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:19,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331991443] [2022-03-17 18:55:19,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331991443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:19,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:19,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:19,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337971801] [2022-03-17 18:55:19,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:19,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:19,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:19,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:19,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:19,441 INFO L87 Difference]: Start difference. First operand 1859 states and 2728 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:21,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:23,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:23,479 INFO L93 Difference]: Finished difference Result 2010 states and 2934 transitions. [2022-03-17 18:55:23,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:23,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-17 18:55:23,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:23,482 INFO L225 Difference]: With dead ends: 2010 [2022-03-17 18:55:23,482 INFO L226 Difference]: Without dead ends: 2010 [2022-03-17 18:55:23,482 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:23,483 INFO L912 BasicCegarLoop]: 253 mSDtfsCounter, 56 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:23,483 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 618 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-17 18:55:23,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2022-03-17 18:55:23,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 1867. [2022-03-17 18:55:23,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1867 states, 1862 states have (on average 1.4672395273899033) internal successors, (2732), 1862 states have internal predecessors, (2732), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:23,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1867 states to 1867 states and 2736 transitions. [2022-03-17 18:55:23,496 INFO L78 Accepts]: Start accepts. Automaton has 1867 states and 2736 transitions. Word has length 157 [2022-03-17 18:55:23,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:23,496 INFO L478 AbstractCegarLoop]: Abstraction has 1867 states and 2736 transitions. [2022-03-17 18:55:23,496 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:23,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1867 states and 2736 transitions. [2022-03-17 18:55:23,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-17 18:55:23,498 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:23,498 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:23,498 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 18:55:23,499 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:23,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:23,499 INFO L85 PathProgramCache]: Analyzing trace with hash -890117485, now seen corresponding path program 1 times [2022-03-17 18:55:23,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:23,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408227443] [2022-03-17 18:55:23,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:23,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:23,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:23,584 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:23,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:23,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408227443] [2022-03-17 18:55:23,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408227443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:23,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:23,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:23,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895045858] [2022-03-17 18:55:23,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:23,585 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:23,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:23,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:23,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:23,586 INFO L87 Difference]: Start difference. First operand 1867 states and 2736 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:26,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:26,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:26,825 INFO L93 Difference]: Finished difference Result 2002 states and 2918 transitions. [2022-03-17 18:55:26,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:26,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-17 18:55:26,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:26,828 INFO L225 Difference]: With dead ends: 2002 [2022-03-17 18:55:26,828 INFO L226 Difference]: Without dead ends: 2002 [2022-03-17 18:55:26,828 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:26,828 INFO L912 BasicCegarLoop]: 252 mSDtfsCounter, 59 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:26,829 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 616 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 18:55:26,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2022-03-17 18:55:26,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1867. [2022-03-17 18:55:26,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1867 states, 1862 states have (on average 1.4650912996777659) internal successors, (2728), 1862 states have internal predecessors, (2728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1867 states to 1867 states and 2732 transitions. [2022-03-17 18:55:26,842 INFO L78 Accepts]: Start accepts. Automaton has 1867 states and 2732 transitions. Word has length 158 [2022-03-17 18:55:26,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:26,843 INFO L478 AbstractCegarLoop]: Abstraction has 1867 states and 2732 transitions. [2022-03-17 18:55:26,843 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:26,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1867 states and 2732 transitions. [2022-03-17 18:55:26,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-17 18:55:26,845 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:26,845 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:26,845 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 18:55:26,845 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:26,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:26,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1644898489, now seen corresponding path program 1 times [2022-03-17 18:55:26,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:26,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058894667] [2022-03-17 18:55:26,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:26,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:26,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:26,966 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:26,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:26,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058894667] [2022-03-17 18:55:26,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058894667] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:26,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:26,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:26,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892259049] [2022-03-17 18:55:26,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:26,967 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:26,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:26,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:26,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:26,968 INFO L87 Difference]: Start difference. First operand 1867 states and 2732 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:30,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:31,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:31,301 INFO L93 Difference]: Finished difference Result 2002 states and 2914 transitions. [2022-03-17 18:55:31,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:31,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-03-17 18:55:31,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:31,304 INFO L225 Difference]: With dead ends: 2002 [2022-03-17 18:55:31,304 INFO L226 Difference]: Without dead ends: 2002 [2022-03-17 18:55:31,305 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:31,305 INFO L912 BasicCegarLoop]: 251 mSDtfsCounter, 52 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:31,305 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 614 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 512 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 18:55:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2022-03-17 18:55:31,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1871. [2022-03-17 18:55:31,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1871 states, 1866 states have (on average 1.4640943193997857) internal successors, (2732), 1866 states have internal predecessors, (2732), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:31,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2736 transitions. [2022-03-17 18:55:31,342 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2736 transitions. Word has length 160 [2022-03-17 18:55:31,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:31,343 INFO L478 AbstractCegarLoop]: Abstraction has 1871 states and 2736 transitions. [2022-03-17 18:55:31,343 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2736 transitions. [2022-03-17 18:55:31,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-17 18:55:31,345 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:31,345 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:31,345 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 18:55:31,346 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:31,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:31,346 INFO L85 PathProgramCache]: Analyzing trace with hash -231774159, now seen corresponding path program 1 times [2022-03-17 18:55:31,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:31,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106168568] [2022-03-17 18:55:31,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:31,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:31,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:31,450 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:31,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:31,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106168568] [2022-03-17 18:55:31,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106168568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:31,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:31,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:31,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452018630] [2022-03-17 18:55:31,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:31,450 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:31,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:31,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:31,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:31,451 INFO L87 Difference]: Start difference. First operand 1871 states and 2736 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:32,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:34,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:36,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:38,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:38,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:38,968 INFO L93 Difference]: Finished difference Result 2243 states and 3255 transitions. [2022-03-17 18:55:38,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:38,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2022-03-17 18:55:38,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:38,972 INFO L225 Difference]: With dead ends: 2243 [2022-03-17 18:55:38,972 INFO L226 Difference]: Without dead ends: 2243 [2022-03-17 18:55:38,972 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:38,973 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 114 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:38,973 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 368 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 461 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-17 18:55:38,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2022-03-17 18:55:38,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 1886. [2022-03-17 18:55:38,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1886 states, 1881 states have (on average 1.4603934077618288) internal successors, (2747), 1881 states have internal predecessors, (2747), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:38,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2751 transitions. [2022-03-17 18:55:38,999 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2751 transitions. Word has length 161 [2022-03-17 18:55:38,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:39,001 INFO L478 AbstractCegarLoop]: Abstraction has 1886 states and 2751 transitions. [2022-03-17 18:55:39,001 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:39,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2751 transitions. [2022-03-17 18:55:39,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-17 18:55:39,011 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:39,011 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:39,011 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 18:55:39,011 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:39,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:39,011 INFO L85 PathProgramCache]: Analyzing trace with hash -242797578, now seen corresponding path program 1 times [2022-03-17 18:55:39,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:39,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608903350] [2022-03-17 18:55:39,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:39,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:39,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:39,158 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:39,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:39,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608903350] [2022-03-17 18:55:39,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608903350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:39,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:39,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:39,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967706773] [2022-03-17 18:55:39,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:39,160 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:39,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:39,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:39,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:39,160 INFO L87 Difference]: Start difference. First operand 1886 states and 2751 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:42,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:42,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:42,886 INFO L93 Difference]: Finished difference Result 2001 states and 2901 transitions. [2022-03-17 18:55:42,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:42,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2022-03-17 18:55:42,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:42,889 INFO L225 Difference]: With dead ends: 2001 [2022-03-17 18:55:42,889 INFO L226 Difference]: Without dead ends: 2001 [2022-03-17 18:55:42,889 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:42,889 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 45 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:42,889 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 604 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-17 18:55:42,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2022-03-17 18:55:42,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1894. [2022-03-17 18:55:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1889 states have (on average 1.4584436209634728) internal successors, (2755), 1889 states have internal predecessors, (2755), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2759 transitions. [2022-03-17 18:55:42,905 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2759 transitions. Word has length 161 [2022-03-17 18:55:42,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:42,906 INFO L478 AbstractCegarLoop]: Abstraction has 1894 states and 2759 transitions. [2022-03-17 18:55:42,907 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:42,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2759 transitions. [2022-03-17 18:55:42,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-17 18:55:42,908 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:42,908 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:42,909 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 18:55:42,909 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:42,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:42,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1789542991, now seen corresponding path program 1 times [2022-03-17 18:55:42,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:42,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178923923] [2022-03-17 18:55:42,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:42,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:43,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:43,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:43,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178923923] [2022-03-17 18:55:43,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178923923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:43,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:43,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:43,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137230045] [2022-03-17 18:55:43,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:43,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:43,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:43,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:43,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:43,014 INFO L87 Difference]: Start difference. First operand 1894 states and 2759 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:44,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:46,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:48,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:49,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:49,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:49,788 INFO L93 Difference]: Finished difference Result 1993 states and 2889 transitions. [2022-03-17 18:55:49,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:49,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-03-17 18:55:49,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:49,792 INFO L225 Difference]: With dead ends: 1993 [2022-03-17 18:55:49,792 INFO L226 Difference]: Without dead ends: 1993 [2022-03-17 18:55:49,792 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:49,792 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 42 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:49,792 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 600 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 18:55:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2022-03-17 18:55:49,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1898. [2022-03-17 18:55:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1893 states have (on average 1.4574749075541469) internal successors, (2759), 1893 states have internal predecessors, (2759), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:49,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2763 transitions. [2022-03-17 18:55:49,829 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2763 transitions. Word has length 162 [2022-03-17 18:55:49,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:49,829 INFO L478 AbstractCegarLoop]: Abstraction has 1898 states and 2763 transitions. [2022-03-17 18:55:49,829 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:49,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2763 transitions. [2022-03-17 18:55:49,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-17 18:55:49,831 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:49,831 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:49,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 18:55:49,831 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:49,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:49,832 INFO L85 PathProgramCache]: Analyzing trace with hash 268806909, now seen corresponding path program 1 times [2022-03-17 18:55:49,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:49,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135255070] [2022-03-17 18:55:49,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:49,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:49,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:49,928 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:49,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:49,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135255070] [2022-03-17 18:55:49,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135255070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:49,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:49,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:49,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248244597] [2022-03-17 18:55:49,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:49,929 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:49,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:49,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:49,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:49,930 INFO L87 Difference]: Start difference. First operand 1898 states and 2763 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:51,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:53,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:54,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:56,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:56,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:56,722 INFO L93 Difference]: Finished difference Result 1993 states and 2885 transitions. [2022-03-17 18:55:56,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:56,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-03-17 18:55:56,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:56,725 INFO L225 Difference]: With dead ends: 1993 [2022-03-17 18:55:56,725 INFO L226 Difference]: Without dead ends: 1993 [2022-03-17 18:55:56,725 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:56,725 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 40 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:56,726 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 598 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 18:55:56,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2022-03-17 18:55:56,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1902. [2022-03-17 18:55:56,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1897 states have (on average 1.456510279388508) internal successors, (2763), 1897 states have internal predecessors, (2763), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:56,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2767 transitions. [2022-03-17 18:55:56,743 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2767 transitions. Word has length 162 [2022-03-17 18:55:56,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:56,743 INFO L478 AbstractCegarLoop]: Abstraction has 1902 states and 2767 transitions. [2022-03-17 18:55:56,743 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:56,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2767 transitions. [2022-03-17 18:55:56,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-17 18:55:56,745 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:56,746 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:56,746 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 18:55:56,746 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:56,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:56,747 INFO L85 PathProgramCache]: Analyzing trace with hash 207567975, now seen corresponding path program 1 times [2022-03-17 18:55:56,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:56,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829609568] [2022-03-17 18:55:56,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:56,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:56,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:56,851 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:55:56,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:56,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829609568] [2022-03-17 18:55:56,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829609568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:56,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:56,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:56,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322899100] [2022-03-17 18:55:56,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:56,851 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:56,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:56,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:56,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:56,852 INFO L87 Difference]: Start difference. First operand 1902 states and 2767 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:00,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:02,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:02,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:02,661 INFO L93 Difference]: Finished difference Result 2259 states and 3256 transitions. [2022-03-17 18:56:02,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:02,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-03-17 18:56:02,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:02,664 INFO L225 Difference]: With dead ends: 2259 [2022-03-17 18:56:02,664 INFO L226 Difference]: Without dead ends: 2259 [2022-03-17 18:56:02,664 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:02,665 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 109 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:02,665 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 368 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 18:56:02,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2022-03-17 18:56:02,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 1922. [2022-03-17 18:56:02,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1922 states, 1917 states have (on average 1.4543557642149192) internal successors, (2788), 1917 states have internal predecessors, (2788), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:02,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 2792 transitions. [2022-03-17 18:56:02,679 INFO L78 Accepts]: Start accepts. Automaton has 1922 states and 2792 transitions. Word has length 163 [2022-03-17 18:56:02,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:02,679 INFO L478 AbstractCegarLoop]: Abstraction has 1922 states and 2792 transitions. [2022-03-17 18:56:02,679 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:02,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states and 2792 transitions. [2022-03-17 18:56:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-17 18:56:02,681 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:02,681 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:02,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 18:56:02,681 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:02,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:02,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1467222768, now seen corresponding path program 1 times [2022-03-17 18:56:02,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:02,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453966942] [2022-03-17 18:56:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:02,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:02,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-17 18:56:02,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:02,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453966942] [2022-03-17 18:56:02,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453966942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:02,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:02,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:56:02,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711466535] [2022-03-17 18:56:02,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:02,779 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:56:02,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:02,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:56:02,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:56:02,779 INFO L87 Difference]: Start difference. First operand 1922 states and 2792 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:04,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:06,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:08,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:08,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:08,502 INFO L93 Difference]: Finished difference Result 2302 states and 3343 transitions. [2022-03-17 18:56:08,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:56:08,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-03-17 18:56:08,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:08,507 INFO L225 Difference]: With dead ends: 2302 [2022-03-17 18:56:08,507 INFO L226 Difference]: Without dead ends: 2302 [2022-03-17 18:56:08,507 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:56:08,508 INFO L912 BasicCegarLoop]: 387 mSDtfsCounter, 145 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:08,508 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 581 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 427 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 18:56:08,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-03-17 18:56:08,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2022-03-17 18:56:08,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 2297 states have (on average 1.453635176316935) internal successors, (3339), 2297 states have internal predecessors, (3339), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:08,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3343 transitions. [2022-03-17 18:56:08,528 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3343 transitions. Word has length 171 [2022-03-17 18:56:08,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:08,529 INFO L478 AbstractCegarLoop]: Abstraction has 2302 states and 3343 transitions. [2022-03-17 18:56:08,529 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:08,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3343 transitions. [2022-03-17 18:56:08,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-17 18:56:08,531 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:08,531 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:08,531 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 18:56:08,531 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:08,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:08,532 INFO L85 PathProgramCache]: Analyzing trace with hash -73974424, now seen corresponding path program 1 times [2022-03-17 18:56:08,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:08,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369215434] [2022-03-17 18:56:08,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:08,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:08,703 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:56:08,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:08,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369215434] [2022-03-17 18:56:08,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369215434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:08,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:08,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:56:08,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188490172] [2022-03-17 18:56:08,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:08,705 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:56:08,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:08,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:56:08,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:56:08,705 INFO L87 Difference]: Start difference. First operand 2302 states and 3343 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:12,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:12,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:12,571 INFO L93 Difference]: Finished difference Result 2677 states and 3888 transitions. [2022-03-17 18:56:12,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:56:12,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-17 18:56:12,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:12,583 INFO L225 Difference]: With dead ends: 2677 [2022-03-17 18:56:12,583 INFO L226 Difference]: Without dead ends: 2677 [2022-03-17 18:56:12,583 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:56:12,584 INFO L912 BasicCegarLoop]: 380 mSDtfsCounter, 137 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:12,584 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 574 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 418 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 18:56:12,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2022-03-17 18:56:12,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2677. [2022-03-17 18:56:12,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4535928143712575) internal successors, (3884), 2672 states have internal predecessors, (3884), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:12,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3888 transitions. [2022-03-17 18:56:12,619 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3888 transitions. Word has length 172 [2022-03-17 18:56:12,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:12,619 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3888 transitions. [2022-03-17 18:56:12,619 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3888 transitions. [2022-03-17 18:56:12,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-17 18:56:12,622 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:12,622 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:12,622 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 18:56:12,622 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:12,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:12,622 INFO L85 PathProgramCache]: Analyzing trace with hash -516462024, now seen corresponding path program 1 times [2022-03-17 18:56:12,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:12,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658411342] [2022-03-17 18:56:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:12,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:12,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:12,848 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-03-17 18:56:12,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:12,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658411342] [2022-03-17 18:56:12,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658411342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:12,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:12,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:12,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469883208] [2022-03-17 18:56:12,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:12,849 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:12,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:12,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:12,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:12,849 INFO L87 Difference]: Start difference. First operand 2677 states and 3888 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:15,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:16,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:18,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:18,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:18,823 INFO L93 Difference]: Finished difference Result 2831 states and 4094 transitions. [2022-03-17 18:56:18,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:18,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-03-17 18:56:18,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:18,826 INFO L225 Difference]: With dead ends: 2831 [2022-03-17 18:56:18,826 INFO L226 Difference]: Without dead ends: 2831 [2022-03-17 18:56:18,833 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:18,833 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 41 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:18,835 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 602 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 18:56:18,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2022-03-17 18:56:18,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2677. [2022-03-17 18:56:18,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4509730538922156) internal successors, (3877), 2672 states have internal predecessors, (3877), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:18,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3881 transitions. [2022-03-17 18:56:18,891 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3881 transitions. Word has length 180 [2022-03-17 18:56:18,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:18,892 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3881 transitions. [2022-03-17 18:56:18,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:18,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3881 transitions. [2022-03-17 18:56:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-17 18:56:18,895 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:18,895 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:18,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 18:56:18,896 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:18,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:18,896 INFO L85 PathProgramCache]: Analyzing trace with hash 664470330, now seen corresponding path program 1 times [2022-03-17 18:56:18,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:18,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662745361] [2022-03-17 18:56:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:18,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:19,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-17 18:56:19,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:19,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662745361] [2022-03-17 18:56:19,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662745361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:19,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:19,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:19,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560546632] [2022-03-17 18:56:19,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:19,008 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:19,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:19,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:19,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:19,008 INFO L87 Difference]: Start difference. First operand 2677 states and 3881 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:21,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:23,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:25,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:25,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:25,656 INFO L93 Difference]: Finished difference Result 3144 states and 4500 transitions. [2022-03-17 18:56:25,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:25,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-03-17 18:56:25,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:25,664 INFO L225 Difference]: With dead ends: 3144 [2022-03-17 18:56:25,664 INFO L226 Difference]: Without dead ends: 3144 [2022-03-17 18:56:25,664 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:25,665 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 123 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:25,665 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 380 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 18:56:25,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2022-03-17 18:56:25,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2677. [2022-03-17 18:56:25,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4431137724550898) internal successors, (3856), 2672 states have internal predecessors, (3856), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:25,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3860 transitions. [2022-03-17 18:56:25,688 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3860 transitions. Word has length 202 [2022-03-17 18:56:25,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:25,688 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3860 transitions. [2022-03-17 18:56:25,688 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:25,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3860 transitions. [2022-03-17 18:56:25,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-17 18:56:25,690 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:25,691 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:25,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 18:56:25,691 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:25,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:25,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1023181626, now seen corresponding path program 1 times [2022-03-17 18:56:25,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:25,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273919521] [2022-03-17 18:56:25,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:25,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:25,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-17 18:56:25,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:25,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273919521] [2022-03-17 18:56:25,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273919521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:25,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:25,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:25,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107593658] [2022-03-17 18:56:25,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:25,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:25,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:25,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:25,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:25,826 INFO L87 Difference]: Start difference. First operand 2677 states and 3860 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:29,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:29,018 INFO L93 Difference]: Finished difference Result 3144 states and 4459 transitions. [2022-03-17 18:56:29,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:29,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-03-17 18:56:29,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:29,022 INFO L225 Difference]: With dead ends: 3144 [2022-03-17 18:56:29,022 INFO L226 Difference]: Without dead ends: 3144 [2022-03-17 18:56:29,022 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:29,022 INFO L912 BasicCegarLoop]: 154 mSDtfsCounter, 125 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:29,022 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 415 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 18:56:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2022-03-17 18:56:29,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2677. [2022-03-17 18:56:29,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4277694610778444) internal successors, (3815), 2672 states have internal predecessors, (3815), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:29,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3819 transitions. [2022-03-17 18:56:29,047 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3819 transitions. Word has length 202 [2022-03-17 18:56:29,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:29,047 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3819 transitions. [2022-03-17 18:56:29,047 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:29,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3819 transitions. [2022-03-17 18:56:29,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-17 18:56:29,050 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:29,050 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:29,050 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-17 18:56:29,051 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:29,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:29,051 INFO L85 PathProgramCache]: Analyzing trace with hash -770439321, now seen corresponding path program 1 times [2022-03-17 18:56:29,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:29,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315743595] [2022-03-17 18:56:29,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:29,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:29,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:29,167 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-17 18:56:29,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:29,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315743595] [2022-03-17 18:56:29,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315743595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:29,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:29,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:29,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661320808] [2022-03-17 18:56:29,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:29,168 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:29,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:29,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:29,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:29,169 INFO L87 Difference]: Start difference. First operand 2677 states and 3819 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:31,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:31,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:31,574 INFO L93 Difference]: Finished difference Result 2803 states and 3989 transitions. [2022-03-17 18:56:31,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:31,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-03-17 18:56:31,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:31,577 INFO L225 Difference]: With dead ends: 2803 [2022-03-17 18:56:31,577 INFO L226 Difference]: Without dead ends: 2803 [2022-03-17 18:56:31,577 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:31,579 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 39 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:31,579 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 591 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:56:31,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2022-03-17 18:56:31,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2677. [2022-03-17 18:56:31,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4251497005988023) internal successors, (3808), 2672 states have internal predecessors, (3808), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:31,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3812 transitions. [2022-03-17 18:56:31,624 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3812 transitions. Word has length 203 [2022-03-17 18:56:31,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:31,624 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3812 transitions. [2022-03-17 18:56:31,624 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:31,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3812 transitions. [2022-03-17 18:56:31,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-17 18:56:31,626 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:31,626 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:31,626 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 18:56:31,627 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:31,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:31,627 INFO L85 PathProgramCache]: Analyzing trace with hash 926528038, now seen corresponding path program 1 times [2022-03-17 18:56:31,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:31,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145588677] [2022-03-17 18:56:31,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:31,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:31,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-17 18:56:31,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:31,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145588677] [2022-03-17 18:56:31,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145588677] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:31,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:31,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:31,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39198643] [2022-03-17 18:56:31,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:31,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:31,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:31,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:31,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:31,731 INFO L87 Difference]: Start difference. First operand 2677 states and 3812 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:33,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:35,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:36,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:36,200 INFO L93 Difference]: Finished difference Result 3144 states and 4424 transitions. [2022-03-17 18:56:36,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:36,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-03-17 18:56:36,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:36,203 INFO L225 Difference]: With dead ends: 3144 [2022-03-17 18:56:36,203 INFO L226 Difference]: Without dead ends: 3144 [2022-03-17 18:56:36,203 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:36,203 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 122 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:36,203 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 368 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 18:56:36,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2022-03-17 18:56:36,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2677. [2022-03-17 18:56:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4146706586826348) internal successors, (3780), 2672 states have internal predecessors, (3780), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3784 transitions. [2022-03-17 18:56:36,222 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3784 transitions. Word has length 203 [2022-03-17 18:56:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:36,222 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3784 transitions. [2022-03-17 18:56:36,222 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3784 transitions. [2022-03-17 18:56:36,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-03-17 18:56:36,225 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:36,225 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:36,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 18:56:36,225 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:36,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:36,225 INFO L85 PathProgramCache]: Analyzing trace with hash -806903239, now seen corresponding path program 1 times [2022-03-17 18:56:36,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:36,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492064204] [2022-03-17 18:56:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:36,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:36,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:36,363 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-17 18:56:36,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:36,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492064204] [2022-03-17 18:56:36,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492064204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:36,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:36,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:36,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880009342] [2022-03-17 18:56:36,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:36,363 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:36,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:36,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:36,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:36,364 INFO L87 Difference]: Start difference. First operand 2677 states and 3784 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:38,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:40,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:41,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:41,191 INFO L93 Difference]: Finished difference Result 3021 states and 4263 transitions. [2022-03-17 18:56:41,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:41,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2022-03-17 18:56:41,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:41,194 INFO L225 Difference]: With dead ends: 3021 [2022-03-17 18:56:41,194 INFO L226 Difference]: Without dead ends: 3021 [2022-03-17 18:56:41,195 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:41,195 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 34 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:41,195 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 591 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 18:56:41,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3021 states. [2022-03-17 18:56:41,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3021 to 2887. [2022-03-17 18:56:41,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2887 states, 2882 states have (on average 1.4136016655100625) internal successors, (4074), 2882 states have internal predecessors, (4074), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:41,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 4078 transitions. [2022-03-17 18:56:41,216 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 4078 transitions. Word has length 205 [2022-03-17 18:56:41,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:41,216 INFO L478 AbstractCegarLoop]: Abstraction has 2887 states and 4078 transitions. [2022-03-17 18:56:41,216 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:41,216 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 4078 transitions. [2022-03-17 18:56:41,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-03-17 18:56:41,219 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:41,219 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:41,219 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 18:56:41,220 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:41,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:41,220 INFO L85 PathProgramCache]: Analyzing trace with hash -737010179, now seen corresponding path program 1 times [2022-03-17 18:56:41,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:41,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736799988] [2022-03-17 18:56:41,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:41,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:41,462 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-17 18:56:41,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:41,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736799988] [2022-03-17 18:56:41,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736799988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:41,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:41,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 18:56:41,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231497114] [2022-03-17 18:56:41,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:41,463 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 18:56:41,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:41,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 18:56:41,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:56:41,464 INFO L87 Difference]: Start difference. First operand 2887 states and 4078 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:43,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:46,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:47,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:47,302 INFO L93 Difference]: Finished difference Result 3372 states and 4729 transitions. [2022-03-17 18:56:47,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:47,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 211 [2022-03-17 18:56:47,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:47,305 INFO L225 Difference]: With dead ends: 3372 [2022-03-17 18:56:47,305 INFO L226 Difference]: Without dead ends: 3372 [2022-03-17 18:56:47,305 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:56:47,305 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 275 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 110 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:47,305 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 477 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 537 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 18:56:47,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2022-03-17 18:56:47,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 2940. [2022-03-17 18:56:47,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2935 states have (on average 1.415672913117547) internal successors, (4155), 2935 states have internal predecessors, (4155), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:47,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 4159 transitions. [2022-03-17 18:56:47,322 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 4159 transitions. Word has length 211 [2022-03-17 18:56:47,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:47,322 INFO L478 AbstractCegarLoop]: Abstraction has 2940 states and 4159 transitions. [2022-03-17 18:56:47,322 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:47,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 4159 transitions. [2022-03-17 18:56:47,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-03-17 18:56:47,325 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:47,325 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:47,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-17 18:56:47,325 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:47,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:47,325 INFO L85 PathProgramCache]: Analyzing trace with hash 65109109, now seen corresponding path program 1 times [2022-03-17 18:56:47,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:47,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352377116] [2022-03-17 18:56:47,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:47,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:47,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:47,540 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-17 18:56:47,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:47,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352377116] [2022-03-17 18:56:47,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352377116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:47,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:47,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:56:47,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694805090] [2022-03-17 18:56:47,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:47,541 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:56:47,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:47,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:56:47,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:47,541 INFO L87 Difference]: Start difference. First operand 2940 states and 4159 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:49,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:50,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:52,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:54,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:55,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:55,233 INFO L93 Difference]: Finished difference Result 4002 states and 5583 transitions. [2022-03-17 18:56:55,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-17 18:56:55,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-03-17 18:56:55,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:55,238 INFO L225 Difference]: With dead ends: 4002 [2022-03-17 18:56:55,238 INFO L226 Difference]: Without dead ends: 4002 [2022-03-17 18:56:55,239 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:56:55,239 INFO L912 BasicCegarLoop]: 261 mSDtfsCounter, 154 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:55,239 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 797 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-03-17 18:56:55,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2022-03-17 18:56:55,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 3143. [2022-03-17 18:56:55,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3138 states have (on average 1.4133205863607394) internal successors, (4435), 3138 states have internal predecessors, (4435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:55,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 4439 transitions. [2022-03-17 18:56:55,290 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 4439 transitions. Word has length 212 [2022-03-17 18:56:55,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:55,290 INFO L478 AbstractCegarLoop]: Abstraction has 3143 states and 4439 transitions. [2022-03-17 18:56:55,290 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 4439 transitions. [2022-03-17 18:56:55,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-03-17 18:56:55,293 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:55,293 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:55,293 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-17 18:56:55,293 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:55,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:55,294 INFO L85 PathProgramCache]: Analyzing trace with hash -960382890, now seen corresponding path program 1 times [2022-03-17 18:56:55,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:55,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419070876] [2022-03-17 18:56:55,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:55,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:55,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:55,470 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-17 18:56:55,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:55,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419070876] [2022-03-17 18:56:55,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419070876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:55,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:55,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:56:55,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32248639] [2022-03-17 18:56:55,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:55,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:56:55,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:55,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:56:55,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:55,471 INFO L87 Difference]: Start difference. First operand 3143 states and 4439 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:57,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:57,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:57,957 INFO L93 Difference]: Finished difference Result 3588 states and 5033 transitions. [2022-03-17 18:56:57,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:57,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-03-17 18:56:57,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:57,962 INFO L225 Difference]: With dead ends: 3588 [2022-03-17 18:56:57,962 INFO L226 Difference]: Without dead ends: 3574 [2022-03-17 18:56:57,962 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:56:57,962 INFO L912 BasicCegarLoop]: 138 mSDtfsCounter, 243 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 106 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:57,963 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 383 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:56:57,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2022-03-17 18:56:57,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3154. [2022-03-17 18:56:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3154 states, 3149 states have (on average 1.4134645919339472) internal successors, (4451), 3149 states have internal predecessors, (4451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:57,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 4455 transitions. [2022-03-17 18:56:57,989 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 4455 transitions. Word has length 212 [2022-03-17 18:56:57,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:57,990 INFO L478 AbstractCegarLoop]: Abstraction has 3154 states and 4455 transitions. [2022-03-17 18:56:57,990 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:57,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 4455 transitions. [2022-03-17 18:56:58,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-17 18:56:58,008 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:58,008 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:58,008 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-17 18:56:58,008 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:58,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:58,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2000111424, now seen corresponding path program 1 times [2022-03-17 18:56:58,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:58,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743579211] [2022-03-17 18:56:58,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:58,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:58,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:58,225 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 145 proven. 5 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-03-17 18:56:58,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:58,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743579211] [2022-03-17 18:56:58,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743579211] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:56:58,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025923943] [2022-03-17 18:56:58,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:58,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:56:58,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:56:58,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:56:58,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 18:56:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:59,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-17 18:56:59,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:56:59,421 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:56:59,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 18:56:59,507 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:56:59,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:56:59,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 18:56:59,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 18:56:59,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 18:56:59,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 18:56:59,750 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 18:56:59,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-17 18:56:59,808 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 18:56:59,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-17 18:56:59,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 18:56:59,962 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 140 proven. 101 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-03-17 18:56:59,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:57:00,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-17 18:57:00,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-17 18:57:01,283 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_10 Int) (v_arrayElimCell_11 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_10 (store (select |c_#memory_int| v_arrayElimCell_10) (+ 844 v_arrayElimCell_11) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-03-17 18:57:01,478 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 18:57:01,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025923943] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:57:01,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:57:01,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 10] total 14 [2022-03-17 18:57:01,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709815920] [2022-03-17 18:57:01,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:01,479 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:01,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:01,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:01,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=124, Unknown=1, NotChecked=22, Total=182 [2022-03-17 18:57:01,479 INFO L87 Difference]: Start difference. First operand 3154 states and 4455 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:03,109 WARN L833 $PredicateComparison]: unable to prove that (and (not (= 8545 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))) (forall ((v_arrayElimCell_10 Int) (v_arrayElimCell_11 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_10 (store (select |c_#memory_int| v_arrayElimCell_10) (+ 844 v_arrayElimCell_11) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))))) is different from false [2022-03-17 18:57:03,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:03,120 INFO L93 Difference]: Finished difference Result 3826 states and 5358 transitions. [2022-03-17 18:57:03,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:03,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-17 18:57:03,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:03,124 INFO L225 Difference]: With dead ends: 3826 [2022-03-17 18:57:03,124 INFO L226 Difference]: Without dead ends: 3826 [2022-03-17 18:57:03,125 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=42, Invalid=146, Unknown=2, NotChecked=50, Total=240 [2022-03-17 18:57:03,126 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 115 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 263 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:03,126 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 501 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 238 Invalid, 0 Unknown, 263 Unchecked, 0.8s Time] [2022-03-17 18:57:03,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3826 states. [2022-03-17 18:57:03,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3826 to 2951. [2022-03-17 18:57:03,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2951 states, 2946 states have (on average 1.4086897488119483) internal successors, (4150), 2946 states have internal predecessors, (4150), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:03,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2951 states to 2951 states and 4154 transitions. [2022-03-17 18:57:03,150 INFO L78 Accepts]: Start accepts. Automaton has 2951 states and 4154 transitions. Word has length 240 [2022-03-17 18:57:03,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:03,150 INFO L478 AbstractCegarLoop]: Abstraction has 2951 states and 4154 transitions. [2022-03-17 18:57:03,150 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:03,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2951 states and 4154 transitions. [2022-03-17 18:57:03,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-17 18:57:03,153 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:03,153 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:03,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-17 18:57:03,375 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2022-03-17 18:57:03,375 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:03,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:03,376 INFO L85 PathProgramCache]: Analyzing trace with hash 837080913, now seen corresponding path program 1 times [2022-03-17 18:57:03,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:03,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169810732] [2022-03-17 18:57:03,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:03,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:03,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:03,776 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 228 proven. 182 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-17 18:57:03,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:03,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169810732] [2022-03-17 18:57:03,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169810732] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:57:03,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625907176] [2022-03-17 18:57:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:03,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:57:03,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:57:03,786 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:57:03,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 18:57:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:04,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-17 18:57:04,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:57:04,887 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:57:04,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 18:57:04,946 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:57:04,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:57:05,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:57:05,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-17 18:57:05,167 INFO L356 Elim1Store]: treesize reduction 50, result has 58.3 percent of original size [2022-03-17 18:57:05,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 85 [2022-03-17 18:57:05,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:57:05,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-03-17 18:57:05,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:57:05,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2022-03-17 18:57:05,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:57:05,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2022-03-17 18:57:05,992 INFO L356 Elim1Store]: treesize reduction 99, result has 17.5 percent of original size [2022-03-17 18:57:05,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 65 [2022-03-17 18:57:06,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 35 [2022-03-17 18:57:06,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2022-03-17 18:57:06,052 INFO L356 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-03-17 18:57:06,053 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 36 [2022-03-17 18:57:06,070 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:57:06,070 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:57:06,137 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 244 proven. 108 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-03-17 18:57:06,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:57:06,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 62 [2022-03-17 18:57:06,686 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 50 [2022-03-17 18:57:36,866 INFO L356 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2022-03-17 18:57:36,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 1 [2022-03-17 18:57:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 257 proven. 36 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 18:57:37,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625907176] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 18:57:37,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 18:57:37,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-03-17 18:57:37,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983707744] [2022-03-17 18:57:37,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 18:57:37,002 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-17 18:57:37,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:37,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-17 18:57:37,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=633, Unknown=15, NotChecked=0, Total=756 [2022-03-17 18:57:37,002 INFO L87 Difference]: Start difference. First operand 2951 states and 4154 transitions. Second operand has 28 states, 28 states have (on average 12.321428571428571) internal successors, (345), 27 states have internal predecessors, (345), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:38,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:40,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:41,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:43,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:45,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:47,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:49,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:52,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:21,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:21,444 INFO L93 Difference]: Finished difference Result 30026 states and 43360 transitions. [2022-03-17 18:58:21,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-03-17 18:58:21,445 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 12.321428571428571) internal successors, (345), 27 states have internal predecessors, (345), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-03-17 18:58:21,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:21,484 INFO L225 Difference]: With dead ends: 30026 [2022-03-17 18:58:21,485 INFO L226 Difference]: Without dead ends: 30026 [2022-03-17 18:58:21,486 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 542 SyntacticMatches, 23 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8780 ImplicationChecksByTransitivity, 53.6s TimeCoverageRelationStatistics Valid=2450, Invalid=18986, Unknown=26, NotChecked=0, Total=21462 [2022-03-17 18:58:21,486 INFO L912 BasicCegarLoop]: 564 mSDtfsCounter, 2893 mSDsluCounter, 7570 mSDsCounter, 0 mSdLazyCounter, 6589 mSolverCounterSat, 541 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 8134 SdHoareTripleChecker+Invalid, 8302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 6589 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 1169 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:21,486 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2893 Valid, 8134 Invalid, 8302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 6589 Invalid, 3 Unknown, 1169 Unchecked, 21.0s Time] [2022-03-17 18:58:21,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30026 states. [2022-03-17 18:58:21,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30026 to 18876. [2022-03-17 18:58:21,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18876 states, 18871 states have (on average 1.4724709872290818) internal successors, (27787), 18871 states have internal predecessors, (27787), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:21,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18876 states to 18876 states and 27791 transitions. [2022-03-17 18:58:21,752 INFO L78 Accepts]: Start accepts. Automaton has 18876 states and 27791 transitions. Word has length 244 [2022-03-17 18:58:21,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:21,752 INFO L478 AbstractCegarLoop]: Abstraction has 18876 states and 27791 transitions. [2022-03-17 18:58:21,753 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 12.321428571428571) internal successors, (345), 27 states have internal predecessors, (345), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:21,753 INFO L276 IsEmpty]: Start isEmpty. Operand 18876 states and 27791 transitions. [2022-03-17 18:58:21,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-17 18:58:21,766 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:21,767 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:21,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-17 18:58:21,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-03-17 18:58:21,985 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:21,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:21,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1642236613, now seen corresponding path program 1 times [2022-03-17 18:58:21,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:21,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787230816] [2022-03-17 18:58:21,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:21,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:22,354 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2022-03-17 18:58:22,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:22,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787230816] [2022-03-17 18:58:22,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787230816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:22,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:22,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 18:58:22,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544554936] [2022-03-17 18:58:22,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:22,355 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 18:58:22,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:22,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 18:58:22,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:58:22,356 INFO L87 Difference]: Start difference. First operand 18876 states and 27791 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:24,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:26,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:28,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:30,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:31,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:31,527 INFO L93 Difference]: Finished difference Result 31478 states and 44891 transitions. [2022-03-17 18:58:31,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 18:58:31,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 245 [2022-03-17 18:58:31,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:31,563 INFO L225 Difference]: With dead ends: 31478 [2022-03-17 18:58:31,563 INFO L226 Difference]: Without dead ends: 31478 [2022-03-17 18:58:31,563 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:58:31,563 INFO L912 BasicCegarLoop]: 272 mSDtfsCounter, 357 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 52 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:31,563 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 998 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1053 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2022-03-17 18:58:31,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31478 states. [2022-03-17 18:58:31,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31478 to 18822. [2022-03-17 18:58:31,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18822 states, 18817 states have (on average 1.4738268586916086) internal successors, (27733), 18817 states have internal predecessors, (27733), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18822 states to 18822 states and 27737 transitions. [2022-03-17 18:58:31,943 INFO L78 Accepts]: Start accepts. Automaton has 18822 states and 27737 transitions. Word has length 245 [2022-03-17 18:58:31,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:31,943 INFO L478 AbstractCegarLoop]: Abstraction has 18822 states and 27737 transitions. [2022-03-17 18:58:31,944 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:31,944 INFO L276 IsEmpty]: Start isEmpty. Operand 18822 states and 27737 transitions. [2022-03-17 18:58:31,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-17 18:58:31,956 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:31,957 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:31,965 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-17 18:58:31,965 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:31,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:31,966 INFO L85 PathProgramCache]: Analyzing trace with hash -293431461, now seen corresponding path program 1 times [2022-03-17 18:58:31,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:31,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735117623] [2022-03-17 18:58:31,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:31,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:32,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:32,506 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2022-03-17 18:58:32,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:32,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735117623] [2022-03-17 18:58:32,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735117623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:32,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:32,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 18:58:32,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698672689] [2022-03-17 18:58:32,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:32,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 18:58:32,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:32,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 18:58:32,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:58:32,507 INFO L87 Difference]: Start difference. First operand 18822 states and 27737 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:34,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:34,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:34,983 INFO L93 Difference]: Finished difference Result 18830 states and 27747 transitions. [2022-03-17 18:58:34,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 18:58:34,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 245 [2022-03-17 18:58:34,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:35,003 INFO L225 Difference]: With dead ends: 18830 [2022-03-17 18:58:35,003 INFO L226 Difference]: Without dead ends: 18822 [2022-03-17 18:58:35,004 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:58:35,004 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:35,004 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 438 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:58:35,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18822 states. [2022-03-17 18:58:35,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18822 to 18822. [2022-03-17 18:58:35,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18822 states, 18817 states have (on average 1.47377371525748) internal successors, (27732), 18817 states have internal predecessors, (27732), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:35,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18822 states to 18822 states and 27736 transitions. [2022-03-17 18:58:35,216 INFO L78 Accepts]: Start accepts. Automaton has 18822 states and 27736 transitions. Word has length 245 [2022-03-17 18:58:35,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:35,216 INFO L478 AbstractCegarLoop]: Abstraction has 18822 states and 27736 transitions. [2022-03-17 18:58:35,216 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:35,216 INFO L276 IsEmpty]: Start isEmpty. Operand 18822 states and 27736 transitions. [2022-03-17 18:58:35,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-17 18:58:35,226 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:35,226 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:35,226 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-17 18:58:35,226 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:35,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:35,227 INFO L85 PathProgramCache]: Analyzing trace with hash -117103204, now seen corresponding path program 1 times [2022-03-17 18:58:35,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:35,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395727689] [2022-03-17 18:58:35,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:35,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:35,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:35,819 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 286 proven. 16 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-03-17 18:58:35,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:35,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395727689] [2022-03-17 18:58:35,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395727689] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:58:35,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84328453] [2022-03-17 18:58:35,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:35,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:58:35,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:58:35,821 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:58:35,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 18:58:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:37,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-17 18:58:37,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:58:37,078 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:58:37,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 18:58:37,124 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:58:37,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:58:37,304 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:58:37,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:58:37,316 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:58:37,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:58:37,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:58:37,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-17 18:58:37,368 INFO L356 Elim1Store]: treesize reduction 50, result has 58.3 percent of original size [2022-03-17 18:58:37,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 85 [2022-03-17 18:58:37,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:58:37,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-03-17 18:58:38,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:58:38,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2022-03-17 18:58:38,404 INFO L356 Elim1Store]: treesize reduction 99, result has 17.5 percent of original size [2022-03-17 18:58:38,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 65 [2022-03-17 18:58:38,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:58:38,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 68 [2022-03-17 18:58:38,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 35 [2022-03-17 18:58:38,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2022-03-17 18:58:38,476 INFO L356 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-03-17 18:58:38,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 36 [2022-03-17 18:58:38,493 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:58:38,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:58:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 244 proven. 108 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-03-17 18:58:38,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:58:39,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-03-17 18:58:39,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2022-03-17 18:58:48,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:58:48,885 INFO L356 Elim1Store]: treesize reduction 3, result has 25.0 percent of original size [2022-03-17 18:58:48,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 1 [2022-03-17 18:58:49,042 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 257 proven. 36 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 18:58:49,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84328453] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 18:58:49,042 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 18:58:49,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 29 [2022-03-17 18:58:49,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377423099] [2022-03-17 18:58:49,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 18:58:49,043 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-17 18:58:49,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:49,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-17 18:58:49,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2022-03-17 18:58:49,043 INFO L87 Difference]: Start difference. First operand 18822 states and 27736 transitions. Second operand has 29 states, 29 states have (on average 10.862068965517242) internal successors, (315), 28 states have internal predecessors, (315), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:51,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:53,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:55,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:58,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:03,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:03,597 INFO L93 Difference]: Finished difference Result 35817 states and 51499 transitions. [2022-03-17 18:59:03,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-17 18:59:03,599 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.862068965517242) internal successors, (315), 28 states have internal predecessors, (315), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 245 [2022-03-17 18:59:03,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:03,638 INFO L225 Difference]: With dead ends: 35817 [2022-03-17 18:59:03,638 INFO L226 Difference]: Without dead ends: 35817 [2022-03-17 18:59:03,638 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 495 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1390 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=791, Invalid=4039, Unknown=0, NotChecked=0, Total=4830 [2022-03-17 18:59:03,639 INFO L912 BasicCegarLoop]: 340 mSDtfsCounter, 2153 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 4591 mSolverCounterSat, 585 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 4768 SdHoareTripleChecker+Invalid, 6095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 585 IncrementalHoareTripleChecker+Valid, 4591 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 915 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:03,639 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2153 Valid, 4768 Invalid, 6095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [585 Valid, 4591 Invalid, 4 Unknown, 915 Unchecked, 13.6s Time] [2022-03-17 18:59:03,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35817 states. [2022-03-17 18:59:03,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35817 to 11198. [2022-03-17 18:59:03,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11198 states, 11193 states have (on average 1.431162333601358) internal successors, (16019), 11193 states have internal predecessors, (16019), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:03,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11198 states to 11198 states and 16023 transitions. [2022-03-17 18:59:03,878 INFO L78 Accepts]: Start accepts. Automaton has 11198 states and 16023 transitions. Word has length 245 [2022-03-17 18:59:03,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:03,878 INFO L478 AbstractCegarLoop]: Abstraction has 11198 states and 16023 transitions. [2022-03-17 18:59:03,878 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.862068965517242) internal successors, (315), 28 states have internal predecessors, (315), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:03,878 INFO L276 IsEmpty]: Start isEmpty. Operand 11198 states and 16023 transitions. [2022-03-17 18:59:03,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-17 18:59:03,887 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:03,887 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:03,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-17 18:59:04,094 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:59:04,095 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:04,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:04,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1994103863, now seen corresponding path program 1 times [2022-03-17 18:59:04,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:04,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263729316] [2022-03-17 18:59:04,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:04,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:04,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:04,501 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 291 proven. 2 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 18:59:04,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:04,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263729316] [2022-03-17 18:59:04,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263729316] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:59:04,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427272565] [2022-03-17 18:59:04,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:04,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:59:04,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:59:04,504 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:59:04,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-17 18:59:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:05,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 41 conjunts are in the unsatisfiable core [2022-03-17 18:59:05,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:59:05,679 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:59:05,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 18:59:05,722 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:59:05,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:59:05,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-17 18:59:05,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:59:05,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-17 18:59:05,941 INFO L356 Elim1Store]: treesize reduction 50, result has 58.3 percent of original size [2022-03-17 18:59:05,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 85 [2022-03-17 18:59:05,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:59:05,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-03-17 18:59:06,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:59:06,933 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2022-03-17 18:59:06,946 INFO L356 Elim1Store]: treesize reduction 99, result has 17.5 percent of original size [2022-03-17 18:59:06,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 65 [2022-03-17 18:59:06,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:59:06,957 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 68 [2022-03-17 18:59:06,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 35 [2022-03-17 18:59:07,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2022-03-17 18:59:07,016 INFO L356 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-03-17 18:59:07,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 36 [2022-03-17 18:59:07,030 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:59:07,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:59:07,107 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 244 proven. 108 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-03-17 18:59:07,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:59:07,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-03-17 18:59:07,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2022-03-17 18:59:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 257 proven. 36 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 18:59:07,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427272565] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 18:59:07,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 18:59:07,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 26 [2022-03-17 18:59:07,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224547398] [2022-03-17 18:59:07,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 18:59:07,884 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-17 18:59:07,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:07,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-17 18:59:07,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=515, Unknown=0, NotChecked=0, Total=650 [2022-03-17 18:59:07,885 INFO L87 Difference]: Start difference. First operand 11198 states and 16023 transitions. Second operand has 26 states, 26 states have (on average 11.653846153846153) internal successors, (303), 25 states have internal predecessors, (303), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:09,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:11,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:13,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:14,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:16,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:19,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:21,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:24,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:25,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:30,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:30,558 INFO L93 Difference]: Finished difference Result 25827 states and 36140 transitions. [2022-03-17 18:59:30,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-17 18:59:30,558 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.653846153846153) internal successors, (303), 25 states have internal predecessors, (303), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 245 [2022-03-17 18:59:30,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:30,587 INFO L225 Difference]: With dead ends: 25827 [2022-03-17 18:59:30,587 INFO L226 Difference]: Without dead ends: 25827 [2022-03-17 18:59:30,587 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 506 SyntacticMatches, 6 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1245 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=809, Invalid=3613, Unknown=0, NotChecked=0, Total=4422 [2022-03-17 18:59:30,588 INFO L912 BasicCegarLoop]: 317 mSDtfsCounter, 2324 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 3945 mSolverCounterSat, 488 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 5262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 3945 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 824 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:30,588 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2324 Valid, 3581 Invalid, 5262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 3945 Invalid, 5 Unknown, 824 Unchecked, 21.5s Time] [2022-03-17 18:59:30,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25827 states. [2022-03-17 18:59:30,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25827 to 11019. [2022-03-17 18:59:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11019 states, 11014 states have (on average 1.4331759578717995) internal successors, (15785), 11014 states have internal predecessors, (15785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11019 states to 11019 states and 15789 transitions. [2022-03-17 18:59:30,769 INFO L78 Accepts]: Start accepts. Automaton has 11019 states and 15789 transitions. Word has length 245 [2022-03-17 18:59:30,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:30,770 INFO L478 AbstractCegarLoop]: Abstraction has 11019 states and 15789 transitions. [2022-03-17 18:59:30,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.653846153846153) internal successors, (303), 25 states have internal predecessors, (303), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:30,770 INFO L276 IsEmpty]: Start isEmpty. Operand 11019 states and 15789 transitions. [2022-03-17 18:59:30,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-03-17 18:59:30,778 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:30,778 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:30,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-17 18:59:31,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:59:31,000 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:31,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:31,001 INFO L85 PathProgramCache]: Analyzing trace with hash 477894574, now seen corresponding path program 1 times [2022-03-17 18:59:31,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:31,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715978036] [2022-03-17 18:59:31,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:31,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 379 proven. 54 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-03-17 18:59:31,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:31,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715978036] [2022-03-17 18:59:31,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715978036] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:59:31,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171496272] [2022-03-17 18:59:31,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:31,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:59:31,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:59:31,208 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:59:31,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 18:59:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:32,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-17 18:59:32,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:59:32,433 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:59:32,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 18:59:32,476 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:59:32,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:59:32,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 18:59:32,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 18:59:32,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 18:59:32,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 18:59:32,650 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 18:59:32,650 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-17 18:59:32,707 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 18:59:32,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-17 18:59:33,909 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 18:59:33,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2022-03-17 18:59:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 363 proven. 68 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-03-17 18:59:34,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:59:34,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-17 18:59:34,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-17 18:59:34,962 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_80 Int) (v_arrayElimCell_79 Int)) (not (= 8656 (select (select (store |c_#memory_int| v_arrayElimCell_79 (store (select |c_#memory_int| v_arrayElimCell_79) (+ 844 v_arrayElimCell_80) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-03-17 18:59:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-17 18:59:35,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171496272] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:59:35,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:59:35,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 10] total 17 [2022-03-17 18:59:35,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684731281] [2022-03-17 18:59:35,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:35,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:35,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:35,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=201, Unknown=1, NotChecked=28, Total=272 [2022-03-17 18:59:35,074 INFO L87 Difference]: Start difference. First operand 11019 states and 15789 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:36,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:38,620 WARN L833 $PredicateComparison]: unable to prove that (and (not (= 8656 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))) (forall ((v_arrayElimCell_80 Int) (v_arrayElimCell_79 Int)) (not (= 8656 (select (select (store |c_#memory_int| v_arrayElimCell_79 (store (select |c_#memory_int| v_arrayElimCell_79) (+ 844 v_arrayElimCell_80) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))))) is different from false [2022-03-17 18:59:38,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:38,648 INFO L93 Difference]: Finished difference Result 13718 states and 19542 transitions. [2022-03-17 18:59:38,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:38,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 256 [2022-03-17 18:59:38,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:38,684 INFO L225 Difference]: With dead ends: 13718 [2022-03-17 18:59:38,685 INFO L226 Difference]: Without dead ends: 13718 [2022-03-17 18:59:38,685 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=49, Invalid=229, Unknown=2, NotChecked=62, Total=342 [2022-03-17 18:59:38,688 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 102 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 226 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:38,691 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 603 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 244 Invalid, 0 Unknown, 226 Unchecked, 1.5s Time] [2022-03-17 18:59:38,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13718 states. [2022-03-17 18:59:38,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13718 to 11547. [2022-03-17 18:59:38,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11547 states, 11542 states have (on average 1.436406168774909) internal successors, (16579), 11542 states have internal predecessors, (16579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:38,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11547 states to 11547 states and 16583 transitions. [2022-03-17 18:59:38,805 INFO L78 Accepts]: Start accepts. Automaton has 11547 states and 16583 transitions. Word has length 256 [2022-03-17 18:59:38,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:38,806 INFO L478 AbstractCegarLoop]: Abstraction has 11547 states and 16583 transitions. [2022-03-17 18:59:38,806 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:38,806 INFO L276 IsEmpty]: Start isEmpty. Operand 11547 states and 16583 transitions. [2022-03-17 18:59:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-03-17 18:59:38,815 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:38,815 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:38,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-17 18:59:39,031 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:59:39,031 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:39,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:39,032 INFO L85 PathProgramCache]: Analyzing trace with hash 4375631, now seen corresponding path program 1 times [2022-03-17 18:59:39,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:39,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325764242] [2022-03-17 18:59:39,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:39,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:39,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 372 proven. 68 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-17 18:59:39,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:39,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325764242] [2022-03-17 18:59:39,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325764242] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:59:39,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693115716] [2022-03-17 18:59:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:39,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:59:39,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:59:39,313 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:59:39,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-17 18:59:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:40,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-17 18:59:40,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:59:40,603 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:59:40,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 18:59:40,642 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:59:40,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:59:40,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 18:59:40,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 18:59:40,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 18:59:40,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 18:59:40,803 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 18:59:40,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-17 18:59:40,857 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 18:59:40,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-17 18:59:41,935 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 18:59:41,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2022-03-17 18:59:42,061 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 363 proven. 68 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-03-17 18:59:42,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:59:42,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-17 18:59:42,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-17 18:59:43,285 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_92 Int) (v_arrayElimCell_91 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_91 (store (select |c_#memory_int| v_arrayElimCell_91) (+ 844 v_arrayElimCell_92) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8656))) is different from false [2022-03-17 18:59:43,396 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-17 18:59:43,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693115716] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:59:43,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:59:43,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 10] total 18 [2022-03-17 18:59:43,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699692907] [2022-03-17 18:59:43,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:43,398 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:43,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:43,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:43,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=228, Unknown=1, NotChecked=30, Total=306 [2022-03-17 18:59:43,398 INFO L87 Difference]: Start difference. First operand 11547 states and 16583 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:44,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:47,074 WARN L833 $PredicateComparison]: unable to prove that (and (not (= 8656 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))) (forall ((v_arrayElimCell_92 Int) (v_arrayElimCell_91 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_91 (store (select |c_#memory_int| v_arrayElimCell_91) (+ 844 v_arrayElimCell_92) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8656)))) is different from false [2022-03-17 18:59:47,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:47,100 INFO L93 Difference]: Finished difference Result 13384 states and 19084 transitions. [2022-03-17 18:59:47,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:47,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 256 [2022-03-17 18:59:47,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:47,114 INFO L225 Difference]: With dead ends: 13384 [2022-03-17 18:59:47,115 INFO L226 Difference]: Without dead ends: 13384 [2022-03-17 18:59:47,115 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=54, Invalid=258, Unknown=2, NotChecked=66, Total=380 [2022-03-17 18:59:47,116 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 102 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 264 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:47,116 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 637 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 244 Invalid, 0 Unknown, 264 Unchecked, 1.7s Time] [2022-03-17 18:59:47,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13384 states. [2022-03-17 18:59:47,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13384 to 11347. [2022-03-17 18:59:47,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11347 states, 11342 states have (on average 1.435725621583495) internal successors, (16284), 11342 states have internal predecessors, (16284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:47,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11347 states to 11347 states and 16288 transitions. [2022-03-17 18:59:47,232 INFO L78 Accepts]: Start accepts. Automaton has 11347 states and 16288 transitions. Word has length 256 [2022-03-17 18:59:47,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:47,232 INFO L478 AbstractCegarLoop]: Abstraction has 11347 states and 16288 transitions. [2022-03-17 18:59:47,232 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:47,232 INFO L276 IsEmpty]: Start isEmpty. Operand 11347 states and 16288 transitions. [2022-03-17 18:59:47,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-17 18:59:47,242 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:47,242 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:47,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-17 18:59:47,456 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:59:47,456 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:47,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:47,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1959720284, now seen corresponding path program 1 times [2022-03-17 18:59:47,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:47,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102081362] [2022-03-17 18:59:47,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:47,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:47,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-17 18:59:47,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:47,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102081362] [2022-03-17 18:59:47,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102081362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:47,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:47,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 18:59:47,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032755119] [2022-03-17 18:59:47,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:47,728 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 18:59:47,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:47,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 18:59:47,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:59:47,728 INFO L87 Difference]: Start difference. First operand 11347 states and 16288 transitions. Second operand has 8 states, 8 states have (on average 19.875) internal successors, (159), 7 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:49,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:51,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:52,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:54,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:56,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:58,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:59,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:59,158 INFO L93 Difference]: Finished difference Result 15310 states and 21486 transitions. [2022-03-17 18:59:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 18:59:59,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.875) internal successors, (159), 7 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-17 18:59:59,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:59,172 INFO L225 Difference]: With dead ends: 15310 [2022-03-17 18:59:59,172 INFO L226 Difference]: Without dead ends: 15250 [2022-03-17 18:59:59,172 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:59:59,172 INFO L912 BasicCegarLoop]: 286 mSDtfsCounter, 328 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:59,172 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 1020 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1147 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2022-03-17 18:59:59,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15250 states. [2022-03-17 18:59:59,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15250 to 11326. [2022-03-17 18:59:59,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11326 states, 11321 states have (on average 1.4340605953537673) internal successors, (16235), 11321 states have internal predecessors, (16235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:59,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11326 states to 11326 states and 16239 transitions. [2022-03-17 18:59:59,263 INFO L78 Accepts]: Start accepts. Automaton has 11326 states and 16239 transitions. Word has length 257 [2022-03-17 18:59:59,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:59,263 INFO L478 AbstractCegarLoop]: Abstraction has 11326 states and 16239 transitions. [2022-03-17 18:59:59,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.875) internal successors, (159), 7 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 11326 states and 16239 transitions. [2022-03-17 18:59:59,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-17 18:59:59,270 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:59,270 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:59,271 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-17 18:59:59,271 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:59,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:59,271 INFO L85 PathProgramCache]: Analyzing trace with hash 165534939, now seen corresponding path program 1 times [2022-03-17 18:59:59,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:59,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723999778] [2022-03-17 18:59:59,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:59,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:59,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:59,469 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-03-17 18:59:59,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:59,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723999778] [2022-03-17 18:59:59,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723999778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:59,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:59,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 18:59:59,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66423650] [2022-03-17 18:59:59,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:59,469 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 18:59:59,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:59,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 18:59:59,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:59:59,470 INFO L87 Difference]: Start difference. First operand 11326 states and 16239 transitions. Second operand has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:00,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:02,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:04,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:06,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:08,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:08,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:08,755 INFO L93 Difference]: Finished difference Result 14120 states and 19785 transitions. [2022-03-17 19:00:08,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 19:00:08,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-17 19:00:08,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:08,768 INFO L225 Difference]: With dead ends: 14120 [2022-03-17 19:00:08,768 INFO L226 Difference]: Without dead ends: 14120 [2022-03-17 19:00:08,768 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-03-17 19:00:08,769 INFO L912 BasicCegarLoop]: 273 mSDtfsCounter, 286 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 42 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:08,769 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 838 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 870 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2022-03-17 19:00:08,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14120 states. [2022-03-17 19:00:08,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14120 to 11326. [2022-03-17 19:00:08,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11326 states, 11321 states have (on average 1.4315873156081618) internal successors, (16207), 11321 states have internal predecessors, (16207), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:08,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11326 states to 11326 states and 16211 transitions. [2022-03-17 19:00:08,869 INFO L78 Accepts]: Start accepts. Automaton has 11326 states and 16211 transitions. Word has length 257 [2022-03-17 19:00:08,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:08,870 INFO L478 AbstractCegarLoop]: Abstraction has 11326 states and 16211 transitions. [2022-03-17 19:00:08,870 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:08,870 INFO L276 IsEmpty]: Start isEmpty. Operand 11326 states and 16211 transitions. [2022-03-17 19:00:08,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-17 19:00:08,878 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:08,878 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:08,878 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-17 19:00:08,878 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:08,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:08,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2063055326, now seen corresponding path program 1 times [2022-03-17 19:00:08,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:08,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896177402] [2022-03-17 19:00:08,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:08,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:09,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 304 proven. 8 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2022-03-17 19:00:09,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:09,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896177402] [2022-03-17 19:00:09,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896177402] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:00:09,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182449221] [2022-03-17 19:00:09,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:09,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:00:09,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:00:09,207 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:00:09,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-17 19:00:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:10,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1586 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-17 19:00:10,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:00:10,497 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:00:10,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:00:10,539 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:00:10,539 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 19:00:10,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 19:00:10,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 19:00:10,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 19:00:10,719 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 19:00:10,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 19:00:10,734 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 19:00:10,747 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 19:00:10,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-17 19:00:10,795 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 19:00:10,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-17 19:00:11,416 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 19:00:11,417 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2022-03-17 19:00:11,483 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 299 proven. 104 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-03-17 19:00:11,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:00:11,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-03-17 19:00:11,645 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:00:11,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182449221] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 19:00:11,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 19:00:11,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 10] total 13 [2022-03-17 19:00:11,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113357420] [2022-03-17 19:00:11,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:11,645 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:00:11,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:11,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:00:11,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-03-17 19:00:11,646 INFO L87 Difference]: Start difference. First operand 11326 states and 16211 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:12,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:12,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:12,935 INFO L93 Difference]: Finished difference Result 13844 states and 19539 transitions. [2022-03-17 19:00:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:00:12,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-03-17 19:00:12,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:12,951 INFO L225 Difference]: With dead ends: 13844 [2022-03-17 19:00:12,952 INFO L226 Difference]: Without dead ends: 13844 [2022-03-17 19:00:12,952 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 533 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-03-17 19:00:12,952 INFO L912 BasicCegarLoop]: 150 mSDtfsCounter, 117 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:12,952 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 406 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-17 19:00:12,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13844 states. [2022-03-17 19:00:13,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13844 to 12054. [2022-03-17 19:00:13,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12054 states, 12049 states have (on average 1.4126483525603784) internal successors, (17021), 12049 states have internal predecessors, (17021), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:13,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12054 states to 12054 states and 17025 transitions. [2022-03-17 19:00:13,069 INFO L78 Accepts]: Start accepts. Automaton has 12054 states and 17025 transitions. Word has length 267 [2022-03-17 19:00:13,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:13,069 INFO L478 AbstractCegarLoop]: Abstraction has 12054 states and 17025 transitions. [2022-03-17 19:00:13,069 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:13,069 INFO L276 IsEmpty]: Start isEmpty. Operand 12054 states and 17025 transitions. [2022-03-17 19:00:13,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 19:00:13,079 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:13,079 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:13,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-17 19:00:13,300 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:00:13,301 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:13,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:13,301 INFO L85 PathProgramCache]: Analyzing trace with hash 978067049, now seen corresponding path program 1 times [2022-03-17 19:00:13,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:13,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745349573] [2022-03-17 19:00:13,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:13,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:13,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 306 proven. 7 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2022-03-17 19:00:13,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:13,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745349573] [2022-03-17 19:00:13,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745349573] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:00:13,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216494016] [2022-03-17 19:00:13,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:13,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:00:13,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:00:13,577 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:00:13,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-17 19:00:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:14,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 1589 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-17 19:00:14,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:00:14,928 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:00:14,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:00:14,954 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:00:14,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 19:00:15,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 19:00:15,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 19:00:15,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 19:00:15,075 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-03-17 19:00:15,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 49 [2022-03-17 19:00:15,087 INFO L356 Elim1Store]: treesize reduction 35, result has 45.3 percent of original size [2022-03-17 19:00:15,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 52 [2022-03-17 19:00:15,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2022-03-17 19:00:15,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2022-03-17 19:00:15,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:15,190 INFO L356 Elim1Store]: treesize reduction 94, result has 40.9 percent of original size [2022-03-17 19:00:15,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 81 treesize of output 120 [2022-03-17 19:00:15,197 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:00:15,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 114 [2022-03-17 19:00:15,436 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 302 proven. 102 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-03-17 19:00:15,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:00:15,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 120 [2022-03-17 19:00:15,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2022-03-17 19:00:15,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 273 treesize of output 243 [2022-03-17 19:00:15,873 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_21600 (Array Int Int)) (v_ArrVal_21610 (Array Int Int)) (v_arrayElimCell_115 Int) (v_arrayElimCell_117 Int) (v_ArrVal_21606 Int) (v_arrayElimCell_116 Int) (v_ArrVal_21604 Int)) (let ((.cse7 (+ 84 c_ssl3_accept_~s.offset))) (let ((.cse8 (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) .cse7))) (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse8 v_ArrVal_21600))) (let ((.cse6 (select .cse5 c_ssl3_accept_~s.base)) (.cse3 (store |c_#memory_int| .cse8 (store (select |c_#memory_int| .cse8) (+ v_arrayElimCell_117 844) 3)))) (let ((.cse1 (select .cse3 c_ssl3_accept_~s.base)) (.cse0 (select .cse6 .cse7))) (or (not (= .cse0 c_ssl3_accept_~s.base)) (not (= 8529 (select .cse1 (+ 52 c_ssl3_accept_~s.offset)))) (not (= (select (let ((.cse4 (+ 64 c_ssl3_accept_~s.offset))) (select (let ((.cse2 (store .cse3 c_ssl3_accept_~s.base (store .cse1 .cse4 v_ArrVal_21604)))) (store .cse2 .cse0 (store (select .cse2 .cse0) (+ v_arrayElimCell_115 871) 1))) (select (select (store (store .cse5 c_ssl3_accept_~s.base (store .cse6 .cse4 v_ArrVal_21606)) .cse0 v_ArrVal_21610) c_ssl3_accept_~s.base) .cse7))) (+ v_arrayElimCell_116 871)) 0))))))))) is different from false [2022-03-17 19:00:15,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:15,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7287 treesize of output 6935 [2022-03-17 19:00:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:00:16,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216494016] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 19:00:16,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 19:00:16,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 10] total 20 [2022-03-17 19:00:16,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004176973] [2022-03-17 19:00:16,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:16,023 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-17 19:00:16,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:16,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-17 19:00:16,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=4, NotChecked=34, Total=380 [2022-03-17 19:00:16,024 INFO L87 Difference]: Start difference. First operand 12054 states and 17025 transitions. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:18,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:18,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:18,214 INFO L93 Difference]: Finished difference Result 12586 states and 17688 transitions. [2022-03-17 19:00:18,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 19:00:18,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-03-17 19:00:18,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:18,228 INFO L225 Difference]: With dead ends: 12586 [2022-03-17 19:00:18,228 INFO L226 Difference]: Without dead ends: 12586 [2022-03-17 19:00:18,229 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=4, NotChecked=36, Total=420 [2022-03-17 19:00:18,229 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 15 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 530 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:18,229 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 1056 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 1 Unknown, 530 Unchecked, 2.1s Time] [2022-03-17 19:00:18,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12586 states. [2022-03-17 19:00:18,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12586 to 12490. [2022-03-17 19:00:18,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12490 states, 12485 states have (on average 1.4079295154185023) internal successors, (17578), 12485 states have internal predecessors, (17578), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:18,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12490 states to 12490 states and 17582 transitions. [2022-03-17 19:00:18,337 INFO L78 Accepts]: Start accepts. Automaton has 12490 states and 17582 transitions. Word has length 268 [2022-03-17 19:00:18,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:18,337 INFO L478 AbstractCegarLoop]: Abstraction has 12490 states and 17582 transitions. [2022-03-17 19:00:18,337 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:18,338 INFO L276 IsEmpty]: Start isEmpty. Operand 12490 states and 17582 transitions. [2022-03-17 19:00:18,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 19:00:18,347 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:18,347 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:18,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-17 19:00:18,556 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2022-03-17 19:00:18,557 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:18,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:18,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1307832810, now seen corresponding path program 1 times [2022-03-17 19:00:18,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:18,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326199872] [2022-03-17 19:00:18,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:18,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:18,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:18,835 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 306 proven. 7 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2022-03-17 19:00:18,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:18,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326199872] [2022-03-17 19:00:18,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326199872] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:00:18,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118902225] [2022-03-17 19:00:18,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:18,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:00:18,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:00:18,843 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:00:18,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-17 19:00:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:20,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-17 19:00:20,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:00:20,240 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:00:20,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:00:20,286 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:00:20,287 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 19:00:20,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 19:00:20,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 19:00:20,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 19:00:20,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 19:00:20,550 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 19:00:20,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-17 19:00:20,599 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 19:00:20,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-17 19:00:20,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 19:00:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 301 proven. 103 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-03-17 19:00:20,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:00:20,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-17 19:00:20,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-17 19:00:22,601 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_128 Int) (v_arrayElimCell_129 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_128 (store (select |c_#memory_int| v_arrayElimCell_128) (+ v_arrayElimCell_129 844) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8529))) is different from false [2022-03-17 19:00:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:00:22,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118902225] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 19:00:22,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 19:00:22,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 10] total 13 [2022-03-17 19:00:22,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296064948] [2022-03-17 19:00:22,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:22,771 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:22,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:22,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:22,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=106, Unknown=1, NotChecked=20, Total=156 [2022-03-17 19:00:22,772 INFO L87 Difference]: Start difference. First operand 12490 states and 17582 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:24,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:26,388 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_128 Int) (v_arrayElimCell_129 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_128 (store (select |c_#memory_int| v_arrayElimCell_128) (+ v_arrayElimCell_129 844) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8529))) (not (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8529))) is different from false [2022-03-17 19:00:26,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:26,443 INFO L93 Difference]: Finished difference Result 14789 states and 20502 transitions. [2022-03-17 19:00:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:26,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-03-17 19:00:26,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:26,461 INFO L225 Difference]: With dead ends: 14789 [2022-03-17 19:00:26,461 INFO L226 Difference]: Without dead ends: 14789 [2022-03-17 19:00:26,461 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=35, Invalid=127, Unknown=2, NotChecked=46, Total=210 [2022-03-17 19:00:26,461 INFO L912 BasicCegarLoop]: 161 mSDtfsCounter, 116 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 198 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:26,462 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 474 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 236 Invalid, 1 Unknown, 198 Unchecked, 2.3s Time] [2022-03-17 19:00:26,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14789 states. [2022-03-17 19:00:26,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14789 to 12849. [2022-03-17 19:00:26,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12849 states, 12844 states have (on average 1.3945811273746496) internal successors, (17912), 12844 states have internal predecessors, (17912), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:26,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12849 states to 12849 states and 17916 transitions. [2022-03-17 19:00:26,642 INFO L78 Accepts]: Start accepts. Automaton has 12849 states and 17916 transitions. Word has length 268 [2022-03-17 19:00:26,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:26,642 INFO L478 AbstractCegarLoop]: Abstraction has 12849 states and 17916 transitions. [2022-03-17 19:00:26,642 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:26,642 INFO L276 IsEmpty]: Start isEmpty. Operand 12849 states and 17916 transitions. [2022-03-17 19:00:26,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 19:00:26,651 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:26,651 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:26,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-17 19:00:26,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2022-03-17 19:00:26,867 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:26,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:26,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1691776927, now seen corresponding path program 1 times [2022-03-17 19:00:26,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:26,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292546377] [2022-03-17 19:00:26,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:26,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:28,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 347 proven. 244 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-17 19:00:28,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:28,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292546377] [2022-03-17 19:00:28,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292546377] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:00:28,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204385666] [2022-03-17 19:00:28,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:28,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:00:28,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:00:28,391 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:00:28,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-17 19:00:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:29,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 175 conjunts are in the unsatisfiable core [2022-03-17 19:00:29,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:00:29,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:30,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:30,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:30,296 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-03-17 19:00:30,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 1453006 treesize of output 308343 [2022-03-17 19:00:41,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-03-17 19:00:41,131 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-03-17 19:00:41,132 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-17 19:00:41,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-17 19:00:41,335 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2022-03-17 19:00:41,336 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:154) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:110) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:90) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:904) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:596) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:197) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:264) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:184) ... 56 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 74 more [2022-03-17 19:00:41,339 INFO L158 Benchmark]: Toolchain (without parser) took 498700.07ms. Allocated memory was 191.9MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 164.6MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 625.2MB. Max. memory is 8.0GB. [2022-03-17 19:00:41,339 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 191.9MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 19:00:41,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.46ms. Allocated memory was 191.9MB in the beginning and 272.6MB in the end (delta: 80.7MB). Free memory was 164.3MB in the beginning and 224.2MB in the end (delta: -59.9MB). Peak memory consumption was 23.6MB. Max. memory is 8.0GB. [2022-03-17 19:00:41,339 INFO L158 Benchmark]: Boogie Preprocessor took 74.40ms. Allocated memory is still 272.6MB. Free memory was 224.2MB in the beginning and 216.5MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-17 19:00:41,339 INFO L158 Benchmark]: RCFGBuilder took 1177.63ms. Allocated memory is still 272.6MB. Free memory was 216.5MB in the beginning and 192.5MB in the end (delta: 24.0MB). Peak memory consumption was 34.5MB. Max. memory is 8.0GB. [2022-03-17 19:00:41,339 INFO L158 Benchmark]: IcfgTransformer took 46.67ms. Allocated memory is still 272.6MB. Free memory was 192.5MB in the beginning and 186.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-03-17 19:00:41,339 INFO L158 Benchmark]: TraceAbstraction took 496932.48ms. Allocated memory was 272.6MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 186.2MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 566.1MB. Max. memory is 8.0GB. [2022-03-17 19:00:41,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 191.9MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 464.46ms. Allocated memory was 191.9MB in the beginning and 272.6MB in the end (delta: 80.7MB). Free memory was 164.3MB in the beginning and 224.2MB in the end (delta: -59.9MB). Peak memory consumption was 23.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 74.40ms. Allocated memory is still 272.6MB. Free memory was 224.2MB in the beginning and 216.5MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1177.63ms. Allocated memory is still 272.6MB. Free memory was 216.5MB in the beginning and 192.5MB in the end (delta: 24.0MB). Peak memory consumption was 34.5MB. Max. memory is 8.0GB. * IcfgTransformer took 46.67ms. Allocated memory is still 272.6MB. Free memory was 192.5MB in the beginning and 186.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 496932.48ms. Allocated memory was 272.6MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 186.2MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 566.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...